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Yin C, Zhang M, Jin S, Zhou Y, Ding L, Lv Q, Huang Z, Zhou J, Chen J, Wang P, Zhang S, You Q. Mechanism of Salvia miltiorrhiza Bunge extract to alleviate Chronic Sleep Deprivation-Induced cognitive dysfunction in rats. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2024; 130:155725. [PMID: 38772181 DOI: 10.1016/j.phymed.2024.155725] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/11/2023] [Revised: 03/16/2024] [Accepted: 05/07/2024] [Indexed: 05/23/2024]
Abstract
BACKGROUND Bidirectional communication between the gut microbiota and the brain may play an essential role in the cognitive dysfunction associated with chronic sleep deprivation(CSD). Salvia miltiorrhiza Bunge (Danshen, DS), a famous Chinese medicine and functional tea, is extensively used to protect learning and memory capacities, although the mechanism of action remains unknown. PURPOSE The purpose of this research was to explore the efficacy and the underlying mechanism of DS in cognitive dysfunction caused by CSD. METHODS DS chemical composition was analyzed by UPLC-QTOF-MS/MS. Forty rats were randomly assigned to five groups (n = 8): control (CON), model (MOD), low- (1.35 g/kg, DSL), high-dose (2.70 g/kg, DSH) DS group, and Melatonin(100 mg/kg, MT) group. A CSD rat model was established over 21 days. DS's effects and the underlying mechanism were explored using the open-field test(OFT), Morris water-maze(MWM), tissue staining(Hematoxylin and Eosin Staining, Nissl staining, Alcian blue-periodic acid SCHIFF staining, and Immunofluorescence), enzyme-linked immunosorbent assay, Western blot, quantitative real-time polymerase chain reaction(qPCR), and 16S rRNA sequencing. RESULTS We demonstrated that CSD caused gut dysbiosis and cognitive dysfunction. Furthermore, 16S rRNA sequencing demonstrated that Firmicutes and Proteobacteria were more in fecal samples from model group rats, whereas Bacteroidota and Spirochaetota were less. DS therapy, on the contrary hand, greatly restored the gut microbial community, consequently alleviating cognitive impairment in rats. Further research revealed that DS administration reduced systemic inflammation via lowering intestinal inflammation and barrier disruption. Following that, DS therapy reduced Blood Brain Barrier(BBB) and neuronal damage, further decreasing neuroinflammation in the hippocampus(HP). Mechanistic studies revealed that DS therapy lowered lipopolysaccharide (LPS) levels in the HP, serum, and colon, consequently blocking the TLR4/MyD88/NF-κB signaling pathway and its downstream pro-inflammatory products(IL-1β, IL-6, TNF-α, iNOS, and COX2) in the HP and colon. CONCLUSION DS treatment dramatically improved spatial learning and memory impairments in rats with CSD by regulating the composition of the intestinal flora, preserving gut and brain barrier function, and reducing inflammation mediated by the LPS-TLR4 signaling pathway. Our findings provide novel insight into the mechanisms by which DS treats cognitive dysfunction caused by CSD.
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Affiliation(s)
- Chao Yin
- School of Pharmacy, Hubei University of Chinese Medicine, Wuhan 430065, PR China; Engineering Research Center of TCM Protection Technology and New Product Development for the Elderly Brain Health, Ministry of Education, Hubei University of Chinese Medicine, Wuhan 430065, PR China; Hubei Shizhen Laboratory, Wuhan 430065, PR China
| | - Meiya Zhang
- School of Pharmacy, Hubei University of Chinese Medicine, Wuhan 430065, PR China; Engineering Research Center of TCM Protection Technology and New Product Development for the Elderly Brain Health, Ministry of Education, Hubei University of Chinese Medicine, Wuhan 430065, PR China; Hubei Shizhen Laboratory, Wuhan 430065, PR China
| | - Shuna Jin
- Hubei Shizhen Laboratory, Wuhan 430065, PR China; School of Basic Medical Sciences, Hubei University of Chinese Medicine, Wuhan 430065, PR China
| | - Yuan Zhou
- School of Pharmacy, Hubei University of Chinese Medicine, Wuhan 430065, PR China
| | - Li Ding
- School of Pharmacy, Hubei University of Chinese Medicine, Wuhan 430065, PR China; Engineering Research Center of TCM Protection Technology and New Product Development for the Elderly Brain Health, Ministry of Education, Hubei University of Chinese Medicine, Wuhan 430065, PR China; Hubei Shizhen Laboratory, Wuhan 430065, PR China
| | - Qing Lv
- School of Pharmacy, Hubei University of Chinese Medicine, Wuhan 430065, PR China
| | - Zixuan Huang
- School of Pharmacy, Hubei University of Chinese Medicine, Wuhan 430065, PR China
| | - Jiaqi Zhou
- School of Pharmacy, Hubei University of Chinese Medicine, Wuhan 430065, PR China
| | - Jianmei Chen
- School of Pharmacy, Hubei University of Chinese Medicine, Wuhan 430065, PR China
| | - Ping Wang
- Engineering Research Center of TCM Protection Technology and New Product Development for the Elderly Brain Health, Ministry of Education, Hubei University of Chinese Medicine, Wuhan 430065, PR China; Hubei Shizhen Laboratory, Wuhan 430065, PR China.
| | - Shunbo Zhang
- School of Pharmacy, Hubei University of Chinese Medicine, Wuhan 430065, PR China.
| | - Qiuyun You
- School of Pharmacy, Hubei University of Chinese Medicine, Wuhan 430065, PR China; Engineering Research Center of TCM Protection Technology and New Product Development for the Elderly Brain Health, Ministry of Education, Hubei University of Chinese Medicine, Wuhan 430065, PR China; Hubei Shizhen Laboratory, Wuhan 430065, PR China.
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Mian M, Tahiri J, Eldin R, Altabaa M, Sehar U, Reddy PH. Overlooked cases of mild cognitive impairment: Implications to early Alzheimer's disease. Ageing Res Rev 2024; 98:102335. [PMID: 38744405 PMCID: PMC11180381 DOI: 10.1016/j.arr.2024.102335] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2024] [Revised: 05/02/2024] [Accepted: 05/08/2024] [Indexed: 05/16/2024]
Abstract
Mild cognitive impairment (MCI) marks the initial phase of memory decline or other cognitive functions like language or spatial perception, while individuals typically retain the capacity to carry out everyday tasks independently. Our comprehensive article investigates the intricate landscape of cognitive disorders, focusing on MCI and Alzheimer's disease (AD) and Alzheimer's disease-related dementias (ADRD). The study aims to understand the signs of MCI, early Alzheimer's disease, and healthy brain aging while assessing factors influencing disease progression, pathology development and susceptibility. A systematic literature review of over 100 articles was conducted, emphasizing MCI, AD and ADRD within the elderly populations. The synthesis of results reveals significant findings regarding ethnicity, gender, lifestyle, comorbidities, and diagnostic tools. Ethnicity was found to influence MCI prevalence, with disparities observed across diverse populations. Gender differences were evident in cognitive performance and decline, highlighting the need for personalized management strategies. Lifestyle factors and comorbidities were identified as crucial influencers of cognitive health. Regarding diagnostic tools, the Montreal Cognitive Assessment (MoCA) emerged as superior to the Mini-Mental State Examination (MMSE) in early MCI detection. Overall, our article provides insights into the multifaceted nature of cognitive disorders, emphasizing the importance of tailored interventions and comprehensive assessment strategies for effective cognitive health management.
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Affiliation(s)
- Maamoon Mian
- Department of Internal Medicine, Texas Tech University Health Sciences Center, Lubbock, TX 79430, USA
| | - Jihane Tahiri
- School of Biology, Texas Tech University, Lubbock, TX 79430, USA
| | - Ryan Eldin
- Department of Biomedical Sciences, Texas A&M University College of Dentistry, Dallas, TX 75246, USA
| | - Mohamad Altabaa
- Department of Internal Medicine, Texas Tech University Health Sciences Center, Lubbock, TX 79430, USA
| | - Ujala Sehar
- Department of Internal Medicine, Texas Tech University Health Sciences Center, Lubbock, TX 79430, USA
| | - P Hemachandra Reddy
- Department of Internal Medicine, Texas Tech University Health Sciences Center, Lubbock, TX 79430, USA; Nutritional Sciences Department, College Human Sciences, Texas Tech University, Lubbock, TX 79409; Department of Pharmacology and Neuroscience, Texas Tech University Health Sciences Center, Lubbock, TX 79430, USA; Department of Neurology, Texas Tech University Health Sciences Center, Lubbock, TX 79430, USA; Department of Public Health, Graduate School of Biomedical Sciences, Texas Tech University Health Sciences Center, Lubbock, TX 79430, USA; Department of Speech, Language, and Hearing Sciences, Texas Tech University Health Sciences Center, Lubbock, TX 79430, USA.
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Singh J, Vanlallawmzuali, Singh A, Biswal S, Zomuansangi R, Lalbiaktluangi C, Singh BP, Singh PK, Vellingiri B, Iyer M, Ram H, Udey B, Yadav MK. Microbiota-brain axis: Exploring the role of gut microbiota in psychiatric disorders - A comprehensive review. Asian J Psychiatr 2024; 97:104068. [PMID: 38776563 DOI: 10.1016/j.ajp.2024.104068] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/22/2023] [Revised: 02/28/2024] [Accepted: 05/01/2024] [Indexed: 05/25/2024]
Abstract
Mental illness is a hidden epidemic in modern science that has gradually spread worldwide. According to estimates from the World Health Organization (WHO), approximately 10% of the world's population suffers from various mental diseases each year. Worldwide, financial and health burdens on society are increasing annually. Therefore, understanding the different factors that can influence mental illness is required to formulate novel and effective treatments and interventions to combat mental illness. Gut microbiota, consisting of diverse microbial communities residing in the gastrointestinal tract, exert profound effects on the central nervous system through the gut-brain axis. The gut-brain axis serves as a conduit for bidirectional communication between the two systems, enabling the gut microbiota to affect emotional and cognitive functions. Dysbiosis, or an imbalance in the gut microbiota, is associated with an increased susceptibility to mental health disorders and psychiatric illnesses. Gut microbiota is one of the most diverse and abundant groups of microbes that have been found to interact with the central nervous system and play important physiological functions in the human gut, thus greatly affecting the development of mental illnesses. The interaction between gut microbiota and mental health-related illnesses is a multifaceted and promising field of study. This review explores the mechanisms by which gut microbiota influences mental health, encompassing the modulation of neurotransmitter production, neuroinflammation, and integrity of the gut barrier. In addition, it emphasizes a thorough understanding of how the gut microbiome affects various psychiatric conditions.
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Affiliation(s)
- Jawahar Singh
- Department of Psychiatry, All India Institute of Medical Sciences (AIIMS), Bathinda, Punjab, India
| | - Vanlallawmzuali
- Department of Biotechnology, Mizoram Central University, Pachhunga University College Campus, Aizawl, Mizoram, India
| | - Amit Singh
- Department of Microbiology Central University of Punjab, Bathinda 151401, India
| | - Suryanarayan Biswal
- Department of Human Genetics and Molecular Medicine, Central University of Punjab, Bathinda 151401, India
| | - Ruth Zomuansangi
- Department of Microbiology Central University of Punjab, Bathinda 151401, India
| | - C Lalbiaktluangi
- Department of Microbiology Central University of Punjab, Bathinda 151401, India
| | - Bhim Pratap Singh
- Department of Agriculture and Environmental Sciences (AES), National Institute of Food Technology Entrepreneurship and Management (NIFTEM), Sonepat, Haryana, India
| | - Prashant Kumar Singh
- Department of Biotechnology, Pachhunga University College Campus, Mizoram University (A Central University), Aizawl 796001, Mizoram, India
| | - Balachandar Vellingiri
- Stem cell and Regenerative Medicine/Translational Research, Department of Zoology, School of Basic Sciences, Central University of Punjab (CUPB), Bathinda, Punjab 151401, India
| | - Mahalaxmi Iyer
- Department of Microbiology Central University of Punjab, Bathinda 151401, India
| | - Heera Ram
- Department of Zoology, Jai Narain Vyas University, Jodhpur, Rajasthan 342001, India
| | - Bharat Udey
- Department of Psychiatry, All India Institute of Medical Sciences (AIIMS), Bathinda, Punjab, India
| | - Mukesh Kumar Yadav
- Department of Microbiology Central University of Punjab, Bathinda 151401, India.
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Roussin L, Gry E, Macaron M, Ribes S, Monnoye M, Douard V, Naudon L, Rabot S. Microbiota influence on behavior: Integrative analysis of serotonin metabolism and behavioral profile in germ-free mice. FASEB J 2024; 38:e23648. [PMID: 38822661 DOI: 10.1096/fj.202400334r] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2024] [Revised: 04/05/2024] [Accepted: 04/22/2024] [Indexed: 06/03/2024]
Abstract
Previous studies on germ-free (GF) animals have described altered anxiety-like and social behaviors together with dysregulations in brain serotonin (5-HT) metabolism. Alterations in circulating 5-HT levels and gut 5-HT metabolism have also been reported in GF mice. In this study, we conducted an integrative analysis of various behaviors as well as markers of 5-HT metabolism in the brain and along the GI tract of GF male mice compared with conventional (CV) ones. We found a strong decrease in locomotor activity, accompanied by some signs of increased anxiety-like behavior in GF mice compared with CV mice. Brain gene expression analysis showed no differences in HTR1A and TPH2 genes. In the gut, we found decreased TPH1 expression in the colon of GF mice, while it was increased in the cecum. HTR1A expression was dramatically decreased in the colon, while HTR4 expression was increased both in the cecum and colon of GF mice compared with CV mice. Finally, SLC6A4 expression was increased in the ileum and colon of GF mice compared with CV mice. Our results add to the evidence that the microbiota is involved in regulation of behavior, although heterogeneity among studies suggests a strong impact of genetic and environmental factors on this microbiota-mediated regulation. While no impact of GF status on brain 5-HT was observed, substantial differences in gut 5-HT metabolism were noted, with tissue-dependent results indicating a varying role of microbiota along the GI tract.
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Affiliation(s)
- Léa Roussin
- Université Paris-Saclay, INRAE, AgroParisTech, Micalis Institute, Jouy-en-Josas, France
| | - Elisa Gry
- Université Paris-Saclay, INRAE, AgroParisTech, Micalis Institute, Jouy-en-Josas, France
| | - Mira Macaron
- Université Paris-Saclay, INRAE, AgroParisTech, Micalis Institute, Jouy-en-Josas, France
| | - Sandy Ribes
- Université Paris-Saclay, INRAE, AgroParisTech, Micalis Institute, Jouy-en-Josas, France
| | - Magali Monnoye
- Université Paris-Saclay, INRAE, AgroParisTech, Micalis Institute, Jouy-en-Josas, France
| | - Véronique Douard
- Université Paris-Saclay, INRAE, AgroParisTech, Micalis Institute, Jouy-en-Josas, France
| | - Laurent Naudon
- Université Paris-Saclay, INRAE, AgroParisTech, CNRS, Micalis Institute, Jouy-en-Josas, France
| | - Sylvie Rabot
- Université Paris-Saclay, INRAE, AgroParisTech, Micalis Institute, Jouy-en-Josas, France
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Maimaiti M, Li C, Cheng M, Zhong Z, Hu J, Yang L, Zhang L, Hong Z, Song J, Pan M, Ma X, Cui S, Zhang P, Hao H, Wang C, Hu H. Blocking cGAS-STING pathway promotes post-stroke functional recovery in an extended treatment window via facilitating remyelination. MED 2024; 5:622-644.e8. [PMID: 38663402 DOI: 10.1016/j.medj.2024.03.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2023] [Revised: 02/15/2024] [Accepted: 03/27/2024] [Indexed: 06/17/2024]
Abstract
BACKGROUND Ischemic stroke is a major cause of worldwide death and disability, with recombinant tissue plasminogen activator being the sole effective treatment, albeit with a limited treatment window. The cyclic GMP-AMP synthase (cGAS) and stimulator of interferon genes (STING) pathway is emerging as the major DNA-sensing pathway to invoke immune responses in neuroinflammatory disorders. METHODS By performing a series of neurobehavioral assessments, electrophysiological analysis, high-throughput sequencing, and cell-based assays based on the transient middle cerebral artery occlusion (tMCAO) mouse stroke model, we examined the effects and underlying mechanisms of genetic and pharmacological inhibition of the cGAS-STING pathway on long-term post-stroke neurological functional outcomes. FINDINGS Blocking the cGAS-STING pathway, even 3 days after tMCAO, significantly promoted functional recovery in terms of white matter structural and functional integrity as well as sensorimotor and cognitive functions. Mechanistically, the neuroprotective effects via inhibiting the cGAS-STING pathway were contributed not only by inflammation repression at the early stage of tMCAO but also by modifying the cell state of phagocytes to facilitate remyelination at the sub-acute phase. The activation of the cGAS-STING pathway significantly impeded post-stroke remyelination through restraining myelin debris uptake and degradation and hindering oligodendrocyte differentiation and maturation. CONCLUSIONS Manipulating the cGAS-STING pathway has an extended treatment window in promoting long-term post-stroke functional recovery via facilitating remyelination in a mouse stroke model. Our results highlight the roles of the cGAS-STING pathway in aggregating stroke pathology and propose a new way for improving functional recovery after ischemic stroke. FUNDING This work was primarily funded by the National Key R&D Program of China.
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Affiliation(s)
- Munire Maimaiti
- State Key Laboratory of Natural Medicines, School of Life Science and Technology, China Pharmaceutical University, Nanjing, China
| | - Chenhui Li
- State Key Laboratory of Natural Medicines, School of Life Science and Technology, China Pharmaceutical University, Nanjing, China.
| | - Mingxing Cheng
- State Key Laboratory of Natural Medicines, School of Life Science and Technology, China Pharmaceutical University, Nanjing, China
| | - Ziwei Zhong
- State Key Laboratory of Natural Medicines, School of Life Science and Technology, China Pharmaceutical University, Nanjing, China
| | - Jiameng Hu
- State Key Laboratory of Natural Medicines, School of Life Science and Technology, China Pharmaceutical University, Nanjing, China
| | - Lei Yang
- State Key Laboratory of Natural Medicines, School of Life Science and Technology, China Pharmaceutical University, Nanjing, China
| | - Lele Zhang
- Central Laboratory, Shanghai Pulmonary Hospital, Tongji University School of Medicine, Shanghai, China
| | - Ze Hong
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, China
| | - Jinyi Song
- State Key Laboratory of Natural Medicines, School of Life Science and Technology, China Pharmaceutical University, Nanjing, China
| | - Mingyu Pan
- State Key Laboratory of Natural Medicines, School of Life Science and Technology, China Pharmaceutical University, Nanjing, China
| | - Xiaonan Ma
- Cellular and Molecular Biology Center, China Pharmaceutical University, Nanjing, China
| | - Shufang Cui
- State Key Laboratory of Natural Medicines, School of Life Science and Technology, China Pharmaceutical University, Nanjing, China
| | - Peng Zhang
- Central Laboratory, Shanghai Pulmonary Hospital, Tongji University School of Medicine, Shanghai, China
| | - Haiping Hao
- Jiangsu Provincial Key Laboratory of Drug Metabolism and Pharmacokinetics, State Key Laboratory of Natural Medicines, Key Laboratory of Drug Metabolism, China Pharmaceutical University, Nanjing, China; School of Pharmacy, China Pharmaceutical University, Nanjing, China
| | - Chen Wang
- State Key Laboratory of Natural Medicines, School of Life Science and Technology, China Pharmaceutical University, Nanjing, China.
| | - Haiyang Hu
- Central Laboratory, Shanghai Pulmonary Hospital, Tongji University School of Medicine, Shanghai, China; Chongqing Innovation Institute of China Pharmaceutical University, Chongqing, China.
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Guida F, Iannotta M, Perrone M, Infantino R, Giorgini G, Fusco A, Marabese I, Manzo I, Belardo C, Di Martino E, Pagano S, Boccella S, Silvestri C, Luongo L, Di Marzo V, Maione S. PEA-OXA restores cognitive impairments associated with vitamin D deficiency-dependent alterations of the gut microbiota. Biomed Pharmacother 2024; 175:116600. [PMID: 38670046 DOI: 10.1016/j.biopha.2024.116600] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2024] [Revised: 04/10/2024] [Accepted: 04/11/2024] [Indexed: 04/28/2024] Open
Abstract
There is a growing evidence suggesting the association of vitamin D deficiency (VDD) and cognitive impairment. In this study we evaluated the possible involvement of gut microbiota in the cognitive impairments mediated by VDD and investigated the effects of pharmacological treatment with the oxazoline derivative of the aliamide palmitoylethanolamide, 2-Pentadecyl-2-oxazoline (PEA-OXA). Mice were submitted to behavioural, biochemical and electrophysiological analysis to assess whether their vitamin D status affected cognitive performance together with gut microbiota composition. In VDD mice we found cognitive malfunctioning associated with reduced neuroplasticity, indicated by impaired long term potentiation, and neuroinflammation at the hippocampal level. Importantly, PEA-OXA counteracted the cognitive impairments and modified the biochemical and functional changes induced by VDD. Additionally, PEA-OXA treatment enhanced gut microbiota diversity, which tended to be decreased by VDD only in female mice, elevated the relative abundance of lactic and butyric acid-producing families, i.e. Aerococcaceae and Butyricicoccaceae, and reversed the VDD-induced decrease of butyrate-producing beneficial genera, such as Blautia in female mice, and Roseburia in male mice. These data provide novel insights for a better understanding of the cognitive decline induced by VDD and related gut dysbiosis and its potential therapeutic treatment.
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Affiliation(s)
- Francesca Guida
- Department of Experimental Medicine, University of Campania "Luigi Vanvitelli", Naples 80138, Italy.
| | - Monica Iannotta
- Department of Experimental Medicine, University of Campania "Luigi Vanvitelli", Naples 80138, Italy
| | - Michela Perrone
- Department of Experimental Medicine, University of Campania "Luigi Vanvitelli", Naples 80138, Italy
| | - Rosmara Infantino
- Department of Experimental Medicine, University of Campania "Luigi Vanvitelli", Naples 80138, Italy
| | - Giada Giorgini
- Centre de Recherche de l'Institut de Cardiologie et Pneumologie de Quebéc (CRIUCPQ) et Institut sur la Nutrition et les Aliments Fonctionnels (INAF), Centre NUTRISS, Department of Medicine and School of Nutrition, Université Laval, Quebec, Canada
| | - Antimo Fusco
- Department of Experimental Medicine, University of Campania "Luigi Vanvitelli", Naples 80138, Italy
| | - Ida Marabese
- Department of Experimental Medicine, University of Campania "Luigi Vanvitelli", Naples 80138, Italy
| | - Iolanda Manzo
- Department of Experimental Medicine, University of Campania "Luigi Vanvitelli", Naples 80138, Italy
| | - Carmela Belardo
- Department of Experimental Medicine, University of Campania "Luigi Vanvitelli", Naples 80138, Italy
| | - Emanuele Di Martino
- Department of Experimental Medicine, University of Campania "Luigi Vanvitelli", Naples 80138, Italy
| | - Salvatore Pagano
- Department of Experimental Medicine, University of Campania "Luigi Vanvitelli", Naples 80138, Italy
| | - Serena Boccella
- Department of Experimental Medicine, University of Campania "Luigi Vanvitelli", Naples 80138, Italy
| | - Cristoforo Silvestri
- Centre de Recherche de l'Institut de Cardiologie et Pneumologie de Quebéc (CRIUCPQ) et Institut sur la Nutrition et les Aliments Fonctionnels (INAF), Centre NUTRISS, Department of Medicine and School of Nutrition, Université Laval, Quebec, Canada
| | - Livio Luongo
- Department of Experimental Medicine, University of Campania "Luigi Vanvitelli", Naples 80138, Italy
| | - Vincenzo Di Marzo
- Centre de Recherche de l'Institut de Cardiologie et Pneumologie de Quebéc (CRIUCPQ) et Institut sur la Nutrition et les Aliments Fonctionnels (INAF), Centre NUTRISS, Department of Medicine and School of Nutrition, Université Laval, Quebec, Canada; Endocannabinoid Research Group, Institute of Biomolecular Chemistry (ICB), National Research Council (CNR), Pozzuoli, Italy; Canada Excellence Research Chair on the Microbiome-Endocannabinoidome Axis in Metabolic Health, Université Laval, and Joint International Research Unit between the Consiglio Nazionale delle Ricerche and Université Laval on Chemical and Biomolecular Studies on the Microbiome and its Impact on Metabolic Health and Nutrition, Canada
| | - Sabatino Maione
- Department of Experimental Medicine, University of Campania "Luigi Vanvitelli", Naples 80138, Italy.
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Suslov AV, Panas A, Sinelnikov MY, Maslennikov RV, Trishina AS, Zharikova TS, Zharova NV, Kalinin DV, Pontes-Silva A, Zharikov YO. Applied physiology: gut microbiota and antimicrobial therapy. Eur J Appl Physiol 2024; 124:1631-1643. [PMID: 38683402 DOI: 10.1007/s00421-024-05496-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2024] [Accepted: 04/22/2024] [Indexed: 05/01/2024]
Abstract
The gut microbiota plays an important role in maintaining human health and in the pathogenesis of several diseases. Antibiotics are among the most commonly prescribed drugs and have a significant impact on the structure and function of the gut microbiota. The understanding that a healthy gut microbiota prevents the development of many diseases has also led to its consideration as a potential therapeutic target. At the same time, any factor that alters the gut microbiota becomes important in this approach. Exercise and antibacterial therapy have a direct effect on the microbiota. The review reflects the current state of publications on the mechanisms of intestinal bacterial involvement in the pathogenesis of cardiovascular, metabolic, and neurodegenerative diseases. The physiological mechanisms of the influence of physical activity on the composition of the gut microbiota are considered. The mechanisms of the common interface between exercise and antibacterial therapy will be considered using the example of several socially important diseases. The aim of the study is to show the physiological relationship between the effects of exercise and antibiotics on the gut microbiota.
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Affiliation(s)
- Andrey V Suslov
- Russian National Centre of Surgery, Avtsyn Research Institute of Human Morphology, Moscow, 117418, Russia
- Pirogov Russian National Research Medical University (RNRMU), Moscow, 117997, Russia
| | - Alin Panas
- N.V. Sklifosovsky Institute of Clinical Medicine, I.M. Sechenov First Moscow State Medical University (Sechenov University), St. Trubetskaya, 8, Bld. 2, Moscow, 119991, Russia
| | - Mikhail Y Sinelnikov
- Department of Oncology, Radiotherapy and Reconstructive Surgery, I.M. Sechenov First Moscow State Medical University (Sechenov University), Moscow, 119048, Russia
| | - Roman V Maslennikov
- Department of Internal Medicine, Gastroenterology and Hepatology, I.M. Sechenov First Moscow State Medical University (Sechenov University), Moscow, 119435, Russia
| | - Aleksandra S Trishina
- N.V. Sklifosovsky Institute of Clinical Medicine, I.M. Sechenov First Moscow State Medical University (Sechenov University), St. Trubetskaya, 8, Bld. 2, Moscow, 119991, Russia
| | - Tatyana S Zharikova
- Department of Human Anatomy and Histology, I.M. Sechenov First Moscow State Medical University (Sechenov University), Moscow, 125009, Russia
- Lomonosov Moscow State University, Moscow, 119991, Russia
| | - Nataliya V Zharova
- Department of Human Anatomy and Histology, I.M. Sechenov First Moscow State Medical University (Sechenov University), Moscow, 125009, Russia
| | - Dmitry V Kalinin
- Pathology Department, A.V. Vishnevsky National Medical Research Center of Surgery, Moscow, 115093, Russia
| | - André Pontes-Silva
- Postgraduate Program in Physical Therapy (PPGFT), Department of Physical Therapy (DFisio), Universidade Federal de São Carlos (UFSCar), São Carlos (SP), Brazil.
| | - Yury O Zharikov
- Department of Human Anatomy and Histology, I.M. Sechenov First Moscow State Medical University (Sechenov University), Moscow, 125009, Russia
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Wang C, Li C, Zhang R, Huang L. Macrophage membrane-coated nanoparticles for the treatment of infectious diseases. Biomed Mater 2024; 19:042003. [PMID: 38740051 DOI: 10.1088/1748-605x/ad4aaa] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2024] [Accepted: 05/13/2024] [Indexed: 05/16/2024]
Abstract
Infectious diseases severely threaten human health, and traditional treatment techniques face multiple limitations. As an important component of immune cells, macrophages display unique biological properties, such as biocompatibility, immunocompatibility, targeting specificity, and immunoregulatory activity, and play a critical role in protecting the body against infections. The macrophage membrane-coated nanoparticles not only maintain the functions of the inner nanoparticles but also inherit the characteristics of macrophages, making them excellent tools for improving drug delivery and therapeutic implications in infectious diseases (IDs). In this review, we describe the characteristics and functions of macrophage membrane-coated nanoparticles and their advantages and challenges in ID therapy. We first summarize the pathological features of IDs, providing insight into how to fight them. Next, we focus on the classification, characteristics, and preparation of macrophage membrane-coated nanoparticles. Finally, we comprehensively describe the progress of macrophage membrane-coated nanoparticles in combating IDs, including drug delivery, inhibition and killing of pathogens, and immune modulation. At the end of this review, a look forward to the challenges of this aspect is presented.
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Affiliation(s)
- Chenguang Wang
- School of Medical Technology, Beijing Institute of Technology, Beijing, People's Republic of China
| | - Chuyu Li
- School of Medical Technology, Beijing Institute of Technology, Beijing, People's Republic of China
| | - Ruoyu Zhang
- School of Medical Technology, Beijing Institute of Technology, Beijing, People's Republic of China
| | - Lili Huang
- School of Medical Technology, Beijing Institute of Technology, Beijing, People's Republic of China
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9
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Guo L, Hu H, Jiang N, Yang H, Sun X, Xia H, Ma J, Liu H. Electroacupuncture blocked motor dysfunction and gut barrier damage by modulating intestinal NLRP3 inflammasome in MPTP-induced Parkinson's disease mice. Heliyon 2024; 10:e30819. [PMID: 38774094 PMCID: PMC11107113 DOI: 10.1016/j.heliyon.2024.e30819] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2023] [Revised: 05/01/2024] [Accepted: 05/06/2024] [Indexed: 05/24/2024] Open
Abstract
Parkinson's disease (PD) is a neurodegenerative disorder commonly accompanied by gut dysfunction. EA has shown anti-inflammatory and neuroprotective effects. Here, we aim to explore whether EA can treat Parkinson's disease by restoring the intestinal barrier and modulating NLRP3 inflammasome. We applied 1-Methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP) to establish a PD mouse model and EA at the GV16, LR3, and ST36 for 12 consecutive days. The open-field test results indicated that EA alleviated depression and behavioral defects, upregulated the expressions of tyrosine hydroxylase (TH) and brain-derived neurotrophic factor (BDNF), and blocked the accumulation of α-synuclein (α-syn) in the midbrain. Moreover, EA blocked the damage to intestinal tissues of PD mice, indicative of suppressed NLRP3 inflammasome activation and increased gut barrier integrity. Notably, the antibiotic-treated mouse experiment validated that the gut microbiota was critical in alleviating PD dyskinesia and intestinal inflammation by EA. In conclusion, this study suggested that EA exhibited a protective effect against MPTP-induced PD by alleviating behavioral defects, reversing the block of motor dysfunction, and improving the gut barrier by modulating intestinal NLRP3 inflammasome. Above all, this study could provide novel insights into the pathogenesis and therapy of PD.
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Affiliation(s)
- Lei Guo
- College of Basic Medical Sciences, Hubei University of Chinese Medicine, Huangjiahu West Road 16, Wuhan 430065, China
- College of Acupuncture and Orthopedics, Hubei University of Chinese Medicine, Wuhan 430060, China
| | - Haiming Hu
- School of Laboratory Medicine, Hubei University of Chinese Medicine, Huangjiahu West Road 16, Wuhan 430065, China
| | - Nan Jiang
- Hubei Provincial Hospital of Traditional Chinese Medicine, Wuhan 430061, China
- Hubei Province Academy of Traditional Chinese Medicine, Wuhan, 430074, China
| | - Huabing Yang
- College of Basic Medical Sciences, Hubei University of Chinese Medicine, Huangjiahu West Road 16, Wuhan 430065, China
| | - Xiongjie Sun
- College of Basic Medical Sciences, Hubei University of Chinese Medicine, Huangjiahu West Road 16, Wuhan 430065, China
| | - Hui Xia
- College of Basic Medical Sciences, Hubei University of Chinese Medicine, Huangjiahu West Road 16, Wuhan 430065, China
| | - Jun Ma
- College of Acupuncture and Orthopedics, Hubei University of Chinese Medicine, Wuhan 430060, China
| | - Hongtao Liu
- College of Basic Medical Sciences, Hubei University of Chinese Medicine, Huangjiahu West Road 16, Wuhan 430065, China
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10
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Ma J, Wang J, Wang G, Wan Y, Li N, Luo L, Gou H, Gu J. The potential beneficial effects of Lactobacillus plantarum GM11 on rats with chronic unpredictable mild stress- induced depression. Nutr Neurosci 2024; 27:413-424. [PMID: 37116073 DOI: 10.1080/1028415x.2023.2205742] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/30/2023]
Abstract
OBJECTIVE The main purpose of the present study was to assess the beneficial effect of Lactobacillus plantarum GM11 (LacP GM11), screened from Sichuan traditional fermented food, in depressive rats induced by chronic unpredictable mild stress (CUMS). METHODS Male SPF SD rats were randomly assigned to 3 groups: the control group, CUMS group and CUMS + LacP GM11 group (n = 10). The rats in the CUMS and LacP GM11 groups received CUMS stimulation for 42 d. The behavioral tests and levels of monoamine neurotransmitter, glucocorticoid hormone and brain-derived neurotrophic factor (BDNF) in the serum and hippocampus were measured. The effects of LacP GM11 on the mRNA and protein expression of BDNF and cAMP response element binding protein (CREB) in the hippocampus were also investigated. RESULTS After supplementation for 21 d, LacP GM11 was associated with alleviation of depressive-like behavior, not anxiety-like behavior, in depressive rats. LacP GM11 increased the levels of 5-hydroxytryptamine (5-HT) and BDNF and decreased the level of cortisol (CORT) in the serum and hippocampus in depressed rats. In addition, treatment with LacP GM11 also increased the mRNA and protein expression of BDNF and CREB in the hippocampus. CONCLUSIONS This work has revealed that LacP GM11 has potential beneficial effects on depression. This effect might be related to alleviating monoamine neurotransmitter deficiency, HPA axis hyperfunction and CREB-BDNF signaling pathway downregulation. This study demonstrates that LacP GM11 could be a potential therapeutic approach to treat depression and other mental health problems.
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Affiliation(s)
- Jie Ma
- Department of Research and Development, Weichuang Tianyi Biotechnology Co., Ltd, Chengdu, Sichuan, People's Republic of China
| | - Junrui Wang
- Savaid Medical School, University of Chinese Academy of Sciences, Beijing, People's Republic of China
- Department of Orthopaedics, Chengdu Second People's Hospital, Chengdu, Sichuan, People's Republic of China
| | - Gang Wang
- Sichuan Food Fermentation Industry Research and Design Institute Co., Ltd, Chengdu, Sichuan, People's Republic of China
| | - Yujun Wan
- Sichuan Food Fermentation Industry Research and Design Institute Co., Ltd, Chengdu, Sichuan, People's Republic of China
| | - Nanzhen Li
- Sichuan Food Fermentation Industry Research and Design Institute Co., Ltd, Chengdu, Sichuan, People's Republic of China
| | - Lijuan Luo
- Sichuan Food Fermentation Industry Research and Design Institute Co., Ltd, Chengdu, Sichuan, People's Republic of China
| | - Hongmei Gou
- Sichuan Food Fermentation Industry Research and Design Institute Co., Ltd, Chengdu, Sichuan, People's Republic of China
| | - Jianwen Gu
- Department of Neurosurgery, PLA Strategic Support Force Characteristic Medical Center, Beijing, People's Republic of China
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11
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Nicolas S, Dohm-Hansen S, Lavelle A, Bastiaanssen TFS, English JA, Cryan JF, Nolan YM. Exercise mitigates a gut microbiota-mediated reduction in adult hippocampal neurogenesis and associated behaviours in rats. Transl Psychiatry 2024; 14:195. [PMID: 38658547 PMCID: PMC11043361 DOI: 10.1038/s41398-024-02904-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/18/2023] [Revised: 04/03/2024] [Accepted: 04/08/2024] [Indexed: 04/26/2024] Open
Abstract
Lifestyle factors, especially exercise, impact the manifestation and progression of psychiatric and neurodegenerative disorders such as depression and Alzheimer's disease, mediated by changes in hippocampal neuroplasticity. The beneficial effects of exercise may be due to its promotion of adult hippocampal neurogenesis (AHN). Gut microbiota has also been showed to be altered in a variety of brain disorders, and disturbances of the microbiota have resulted in alterations in brain and behaviour. However, whether exercise can counteract the negative effects of altered gut microbiota on brain function remains under explored. To this end, chronic disruption of the gut microbiota was achieved using an antibiotic cocktail in rats that were sedentary or allowed voluntary access to running wheels. Sedentary rats with disrupted microbiota displayed impaired performance in hippocampal neurogenesis-dependent tasks: the modified spontaneous location recognition task and the novelty suppressed feeding test. Performance in the elevated plus maze was also impaired due to antibiotics treatment. These behaviours, and an antibiotics-induced reduction in AHN were attenuated by voluntary exercise. The effects were independent of changes in the hippocampal metabolome but were paralleled by caecal metabolomic changes. Taken together these data highlight the importance of the gut microbiota in AHN-dependent behaviours and demonstrate the power of lifestyle factors such as voluntary exercise to attenuate these changes.
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Affiliation(s)
- Sarah Nicolas
- Department of Anatomy and Neuroscience, University College Cork, Cork, Ireland
- APC Microbiome Ireland, University College Cork, Cork, Ireland
| | - Sebastian Dohm-Hansen
- Department of Anatomy and Neuroscience, University College Cork, Cork, Ireland
- APC Microbiome Ireland, University College Cork, Cork, Ireland
| | - Aonghus Lavelle
- Department of Anatomy and Neuroscience, University College Cork, Cork, Ireland
- APC Microbiome Ireland, University College Cork, Cork, Ireland
| | - Thomaz F S Bastiaanssen
- Department of Anatomy and Neuroscience, University College Cork, Cork, Ireland
- APC Microbiome Ireland, University College Cork, Cork, Ireland
| | - Jane A English
- Department of Anatomy and Neuroscience, University College Cork, Cork, Ireland
- INFANT Research Centre, Cork University Hospital, Wilton, Cork, Ireland
| | - John F Cryan
- Department of Anatomy and Neuroscience, University College Cork, Cork, Ireland
- APC Microbiome Ireland, University College Cork, Cork, Ireland
| | - Yvonne M Nolan
- Department of Anatomy and Neuroscience, University College Cork, Cork, Ireland.
- APC Microbiome Ireland, University College Cork, Cork, Ireland.
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12
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Lin K, Peng F, He K, Qian Z, Mei X, Su Z, Wujimaiti Y, Xia X, Zhang T. Research progress on intestinal microbiota regulating cognitive function through the gut-brain axis. Neurol Sci 2024:10.1007/s10072-024-07525-5. [PMID: 38632176 DOI: 10.1007/s10072-024-07525-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2023] [Accepted: 04/05/2024] [Indexed: 04/19/2024]
Abstract
The intestinal microbiota community is a fundamental component of the human body and plays a significant regulatory role in maintaining overall health and in the management disease states.The intestinal microbiota-gut-brain axis represents a vital connection in the cognitive regulation of the central nervous system by the intestinal microbiota.The impact of intestinal microbiota on cognitive function is hypothesized to manifest through both the nervous system and circulatory system. Imbalances in intestinal microbiota during the perioperative period could potentially contribute to perioperative neurocognitive dysfunction. This article concentrates on a review of existing literature to explore the potential influence of intestinal microbiota on brain and cognitive functions via the nervous and circulatory systems.Additionally, it summarizes recent findings on the impact of perioperative intestinal dysbacteriosis on perioperative neurocognitive dysfunction and suggests novel approaches for prevention and treatment of this condition.
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Affiliation(s)
- Kaijie Lin
- School of Clinical Medicine, Chengdu Medical College, Chengdu, Sichuan, China
| | - Feng Peng
- School of Clinical Medicine, Chengdu Medical College, Chengdu, Sichuan, China
- The First Affiliated Hospital Of Chengdu Medical College, Chengdu, Sichuan, China
| | - Kunyang He
- School of Clinical Medicine, Chengdu Medical College, Chengdu, Sichuan, China
| | - Zhengyu Qian
- School of Clinical Medicine, Chengdu Medical College, Chengdu, Sichuan, China
| | - Xuan Mei
- School of Clinical Medicine, Chengdu Medical College, Chengdu, Sichuan, China
| | - Zhikun Su
- School of Clinical Medicine, Chengdu Medical College, Chengdu, Sichuan, China
| | | | - Xun Xia
- School of Clinical Medicine, Chengdu Medical College, Chengdu, Sichuan, China.
- The First Affiliated Hospital Of Chengdu Medical College, Chengdu, Sichuan, China.
| | - Tianyao Zhang
- School of Clinical Medicine, Chengdu Medical College, Chengdu, Sichuan, China.
- The First Affiliated Hospital Of Chengdu Medical College, Chengdu, Sichuan, China.
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13
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Tao W, Zhang Y, Wang B, Nie S, Fang L, Xiao J, Wu Y. Advances in molecular mechanisms and therapeutic strategies for central nervous system diseases based on gut microbiota imbalance. J Adv Res 2024:S2090-1232(24)00124-3. [PMID: 38579985 DOI: 10.1016/j.jare.2024.03.023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2024] [Revised: 03/12/2024] [Accepted: 03/29/2024] [Indexed: 04/07/2024] Open
Abstract
BACKGROUD Central nervous system (CNS) diseases pose a serious threat to human health, but the regulatory mechanisms and therapeutic strategies of CNS diseases need to be further explored. It has been demonstrated that the gut microbiota (GM) is closely related to CNS disease. GM structure disorders, abnormal microbial metabolites, intestinal barrier destruction and elevated inflammation exist in patients with CNS diseases and promote the development of CNS diseases. More importantly, GM remodeling alleviates CNS pathology to some extent. AIM OF REVIEW Here, we have summarized the regulatory mechanism of the GM in CNS diseases and the potential treatment strategies for CNS repair based on GM regulation, aiming to provide safer and more effective strategies for CNS repair from the perspective of GM regulation. KEY SCIENTIFIC CONCEPTS OF REVIEW The abundance and composition of GM is closely associated with the CNS diseases. On the basis of in-depth analysis of GM changes in mice with CNS disease, as well as the changes in its metabolites, therapeutic strategies, such as probiotics, prebiotics, and FMT, may be used to regulate GM balance and affect its microbial metabolites, thereby promoting the recovery of CNS diseases.
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Affiliation(s)
- Wei Tao
- The Institute of Life Sciences, Wenzhou University, Wenzhou 325035, China
| | - Yanren Zhang
- The Institute of Life Sciences, Wenzhou University, Wenzhou 325035, China
| | - Bingbin Wang
- The Institute of Life Sciences, Wenzhou University, Wenzhou 325035, China
| | - Saiqun Nie
- The Institute of Life Sciences, Wenzhou University, Wenzhou 325035, China
| | - Li Fang
- The Institute of Life Sciences, Wenzhou University, Wenzhou 325035, China
| | - Jian Xiao
- School of Pharmaceutical Science, Wenzhou Medical University, Wenzhou, Zhejiang 325035, China.
| | - Yanqing Wu
- The Institute of Life Sciences, Wenzhou University, Wenzhou 325035, China.
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14
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Ye J, Fan H, Shi R, Song G, Wu X, Wang D, Xia B, Zhao Z, Zhao B, Liu X, Wang Y, Dai X. Dietary lipoic acid alleviates autism-like behavior induced by acrylamide in adolescent mice: the potential involvement of the gut-brain axis. Food Funct 2024; 15:3395-3410. [PMID: 38465655 DOI: 10.1039/d3fo05078e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/12/2024]
Abstract
Consuming fried foods has been associated with an increased susceptibility to mental health disorders. Nevertheless, the impact of alpha-lipoic acid (α-LA, LA) on fried food-induced autism-like behavior remains unclear. This study aimed to explore how LA affects autism-related behavior and cognitive deficits caused by acrylamide in mice, a representative food hazard found in fried foods. This improvement was accomplished by enhanced synaptic plasticity, increased neurotrophin expression, elevated calcium-binding protein D28k, and restored serotonin. Additionally, LA substantially influenced the abundance of bacteria linked to autism and depression, simultaneously boosted short-chain fatty acid (SCFA) levels in fecal samples, and induced changes in serum amino acid concentrations. In summary, these findings suggested that exposure to acrylamide in adolescent mice could induce the development of social disorders in adulthood. LA showed promise as a nutritional intervention strategy to tackle emotional disorders during adolescence.
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Affiliation(s)
- Jin Ye
- College of Food Science and Engineering, Northwest A&F University, Yangling, Shaanxi, China.
| | - Hua Fan
- College of Food Science and Engineering, Northwest A&F University, Yangling, Shaanxi, China.
| | - Renjie Shi
- College of Food Science and Engineering, Northwest A&F University, Yangling, Shaanxi, China.
| | - Ge Song
- BGI Institute of Applied Agriculture, BGI-Shenzhen, Shenzhen, China.
| | - Xiaoning Wu
- College of Food Science and Engineering, Northwest A&F University, Yangling, Shaanxi, China.
| | - Danna Wang
- College of Food Science and Engineering, Northwest A&F University, Yangling, Shaanxi, China.
| | - Bing Xia
- College of Food Science and Engineering, Northwest A&F University, Yangling, Shaanxi, China.
| | - Zhenting Zhao
- College of Food Science and Engineering, Northwest A&F University, Yangling, Shaanxi, China.
| | - Beita Zhao
- College of Food Science and Engineering, Northwest A&F University, Yangling, Shaanxi, China.
| | - Xuebo Liu
- College of Food Science and Engineering, Northwest A&F University, Yangling, Shaanxi, China.
| | - Yutang Wang
- College of Food Science and Engineering, Northwest A&F University, Yangling, Shaanxi, China.
| | - Xiaoshuang Dai
- BGI Institute of Applied Agriculture, BGI-Shenzhen, Shenzhen, China.
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15
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Gu JY, Li XB, Liao GQ, Wang TC, Wang ZS, Jia Q, Qian YZ, Zhang XL, Qiu J. Comprehensive analysis of phospholipid in milk and their biological roles as nutrients and biomarkers. Crit Rev Food Sci Nutr 2024:1-20. [PMID: 38556904 DOI: 10.1080/10408398.2024.2330696] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/02/2024]
Abstract
Phospholipids (PL) have garnered significant attention due to their physiological activities. Milk and other dairy products are important dietary sources for humans and have been extensively used to analyze the presence of PL by various analytical techniques. In this paper, the analysis techniques of PL were reviewed with the eight trigrams of phospholipidomics and a comprehensive fingerprint of 1295 PLs covering 8 subclasses in milk and other dairy products, especially. Technology is the primary productive force. Based on phospholipidomics technology, we further review the relationship between the composition of PL and factors that may be involved in processing and experimental operation, and emphasized the significance of the biological role played by PL in dietary supplements and biomarkers (production, processing and clinical research), and providing the future research directions.
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Affiliation(s)
- Jing-Yi Gu
- Institute of Quality Standards and Testing Technology for Agro-Products, Chinese Academy of Agricultural Sciences, Beijing, China
- Key Laboratory of Agri-food Quality and Safety, Ministry of Agriculture and Rural Affairs, Beijing, China
| | - Xia-Bing Li
- Institute of Quality Standards and Testing Technology for Agro-Products, Chinese Academy of Agricultural Sciences, Beijing, China
- Key Laboratory of Agri-food Quality and Safety, Ministry of Agriculture and Rural Affairs, Beijing, China
| | - Guang-Qin Liao
- Institute of Quality Standards and Testing Technology for Agro-Products, Chinese Academy of Agricultural Sciences, Beijing, China
- Key Laboratory of Agri-food Quality and Safety, Ministry of Agriculture and Rural Affairs, Beijing, China
| | - Tian-Cai Wang
- Institute of Quality Standards and Testing Technology for Agro-Products, Chinese Academy of Agricultural Sciences, Beijing, China
- Key Laboratory of Agri-food Quality and Safety, Ministry of Agriculture and Rural Affairs, Beijing, China
| | - Zi-Shuang Wang
- Institute of Quality Standards and Testing Technology for Agro-Products, Chinese Academy of Agricultural Sciences, Beijing, China
- Key Laboratory of Agri-food Quality and Safety, Ministry of Agriculture and Rural Affairs, Beijing, China
| | - Qi Jia
- Institute of Quality Standards and Testing Technology for Agro-Products, Chinese Academy of Agricultural Sciences, Beijing, China
- Key Laboratory of Agri-food Quality and Safety, Ministry of Agriculture and Rural Affairs, Beijing, China
| | - Yong-Zhong Qian
- Institute of Quality Standards and Testing Technology for Agro-Products, Chinese Academy of Agricultural Sciences, Beijing, China
- Key Laboratory of Agri-food Quality and Safety, Ministry of Agriculture and Rural Affairs, Beijing, China
| | - Xing-Lian Zhang
- Institute of Quality Standards and Testing Technology for Agro-Products, Chinese Academy of Agricultural Sciences, Beijing, China
- Key Laboratory of Agri-food Quality and Safety, Ministry of Agriculture and Rural Affairs, Beijing, China
| | - Jing Qiu
- Institute of Quality Standards and Testing Technology for Agro-Products, Chinese Academy of Agricultural Sciences, Beijing, China
- Key Laboratory of Agri-food Quality and Safety, Ministry of Agriculture and Rural Affairs, Beijing, China
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16
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Li Y, Wan TT, Li JX, Xiao X, Liu L, Li HH, Guo SB. ACE2 Rescues Sepsis-Associated Encephalopathy by Reducing Inflammation, Oxidative Stress, and Neuronal Apoptosis via the Nrf2/Sestrin2 Signaling Pathway. Mol Neurobiol 2024:10.1007/s12035-024-04063-1. [PMID: 38532242 DOI: 10.1007/s12035-024-04063-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2023] [Accepted: 02/20/2024] [Indexed: 03/28/2024]
Abstract
Neuroinflammation and oxidative stress contribute to the progression of sepsis-associated encephalopathy (SAE). Angiotensin-converting enzyme 2 (ACE2) is considered to be a neuroprotective factor due to its anti-inflammatory and antioxidant properties. However, the role of ACE2 on myeloid cells in regulating SAE and the underlying mechanism warrants further exploration. SAE was induced in ACE2 transgenic (TG), knockout (KO), and bone marrow (BM) chimeric mice by cecal ligation and puncture (CLP). The expression levels of apoptosis-, oxidation- and neuroinflammation-associated mediators and morphological changes were monitored by quantitative real-time PCR analyses and histological examinations in the cortex of septic mice. The contents of angiotensin (Ang) II and Ang-(1-7) along with the activity of ACE2 were examined with commercial kits. The expression of nuclear factor erythroid 2-related factor 2 (Nrf2) and Sestrin2 was detected by immunoblotting analysis. Our results indicated that the expression of cortical ACE2 was significantly reduced in the early phase of CLP-induced sepsis. Moreover, ACE2 overexpression in TG mice conferred neuroprotection against sepsis, as evidenced by alleviated neuronal apoptosis, oxidative stress, and proinflammatory M1-like microglial polarization, accompanied by upregulation of the Ang-(1-7), Nrf2, and Sestrin2 protein levels. Conversely, ACE2 deficiency in KO mice exacerbated SAE. The neuroprotective effects of ACE2 were further confirmed in wild-type mice transplanted with ACE2-TG and KO BM cells. Therefore, our data suggest that myeloid ACE2 exerts a protective role in the pathogenesis of SAE, potentially by activating Ang-(1-7)-Nrf2/sestrin2 signaling pathway, and highlight that upregulating ACE2 expression and activity may represent a promising approach for the treatment of SAE in patients with sepsis.
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Affiliation(s)
- Ya Li
- Emergency Medicine Clinical Research Center, Key Laboratory of Cardiopulmonary Cerebral Resuscitation, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, 100020, China
| | - Tian-Tian Wan
- Emergency Medicine Clinical Research Center, Key Laboratory of Cardiopulmonary Cerebral Resuscitation, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, 100020, China
| | - Jia-Xin Li
- Emergency Medicine Clinical Research Center, Key Laboratory of Cardiopulmonary Cerebral Resuscitation, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, 100020, China
| | - Xue Xiao
- Emergency Medicine Clinical Research Center, Key Laboratory of Cardiopulmonary Cerebral Resuscitation, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, 100020, China
| | - Lei Liu
- Emergency Medicine Clinical Research Center, Key Laboratory of Cardiopulmonary Cerebral Resuscitation, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, 100020, China
| | - Hui-Hua Li
- Emergency Medicine Clinical Research Center, Key Laboratory of Cardiopulmonary Cerebral Resuscitation, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, 100020, China.
| | - Shu-Bin Guo
- Emergency Medicine Clinical Research Center, Key Laboratory of Cardiopulmonary Cerebral Resuscitation, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, 100020, China.
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17
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Chakraborty N. Metabolites: a converging node of host and microbe to explain meta-organism. Front Microbiol 2024; 15:1337368. [PMID: 38505556 PMCID: PMC10949987 DOI: 10.3389/fmicb.2024.1337368] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2023] [Accepted: 02/13/2024] [Indexed: 03/21/2024] Open
Abstract
Meta-organisms encompassing the host and resident microbiota play a significant role in combatting diseases and responding to stress. Hence, there is growing traction to build a knowledge base about this ecosystem, particularly to characterize the bidirectional relationship between the host and microbiota. In this context, metabolomics has emerged as the major converging node of this entire ecosystem. Systematic comprehension of this resourceful omics component can elucidate the organism-specific response trajectory and the communication grid across the ecosystem embodying meta-organisms. Translating this knowledge into designing nutraceuticals and next-generation therapy are ongoing. Its major hindrance is a significant knowledge gap about the underlying mechanisms maintaining a delicate balance within this ecosystem. To bridge this knowledge gap, a holistic picture of the available information has been presented with a primary focus on the microbiota-metabolite relationship dynamics. The central theme of this article is the gut-brain axis and the participating microbial metabolites that impact cerebral functions.
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Affiliation(s)
- Nabarun Chakraborty
- Medical Readiness Systems Biology, CMPN, WRAIR, Silver Spring, MD, United States
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18
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Cuartero MI, García-Culebras A, Nieto-Vaquero C, Fraga E, Torres-López C, Pradillo J, Lizasoain I, Moro MÁ. The role of gut microbiota in cerebrovascular disease and related dementia. Br J Pharmacol 2024; 181:816-839. [PMID: 37328270 DOI: 10.1111/bph.16167] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2023] [Revised: 05/23/2023] [Accepted: 06/02/2023] [Indexed: 06/18/2023] Open
Abstract
In recent years, increasing evidence suggests that commensal microbiota may play an important role not only in health but also in disease including cerebrovascular disease. Gut microbes impact physiology, at least in part, by metabolizing dietary factors and host-derived substrates and then generating active compounds including toxins. The purpose of this current review is to highlight the complex interplay between microbiota, their metabolites. and essential functions for human health, ranging from regulation of the metabolism and the immune system to modulation of brain development and function. We discuss the role of gut dysbiosis in cerebrovascular disease, specifically in acute and chronic stroke phases, and the possible implication of intestinal microbiota in post-stroke cognitive impairment and dementia, and we identify potential therapeutic opportunities of targeting microbiota in this context. LINKED ARTICLES: This article is part of a themed issue From Alzheimer's Disease to Vascular Dementia: Different Roads Leading to Cognitive Decline. To view the other articles in this section visit http://onlinelibrary.wiley.com/doi/10.1111/bph.v181.6/issuetoc.
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Affiliation(s)
- María Isabel Cuartero
- Neurovascular Pathophysiology, Cardiovascular Risk Factor and Brain Function Programme, Centro Nacional de Investigaciones Cardiovasculares (CNIC), Madrid, Spain
- Departamento de Farmacología y Toxicología, Facultad de Medicina, Universidad Complutense de Madrid (UCM), Madrid, Spain
- Instituto de Investigación Hospital 12 de Octubre (i+12), Madrid, Spain
- Instituto Universitario de Investigación en Neuroquímica, Universidad Complutense de Madrid (UCM), Madrid, Spain
| | - Alicia García-Culebras
- Neurovascular Pathophysiology, Cardiovascular Risk Factor and Brain Function Programme, Centro Nacional de Investigaciones Cardiovasculares (CNIC), Madrid, Spain
- Departamento de Farmacología y Toxicología, Facultad de Medicina, Universidad Complutense de Madrid (UCM), Madrid, Spain
- Instituto de Investigación Hospital 12 de Octubre (i+12), Madrid, Spain
- Departamento de Biología Celular, Facultad de Medicina, Universidad Complutense de Madrid (UCM), Madrid, Spain
| | - Carmen Nieto-Vaquero
- Neurovascular Pathophysiology, Cardiovascular Risk Factor and Brain Function Programme, Centro Nacional de Investigaciones Cardiovasculares (CNIC), Madrid, Spain
- Departamento de Farmacología y Toxicología, Facultad de Medicina, Universidad Complutense de Madrid (UCM), Madrid, Spain
- Instituto de Investigación Hospital 12 de Octubre (i+12), Madrid, Spain
- Instituto Universitario de Investigación en Neuroquímica, Universidad Complutense de Madrid (UCM), Madrid, Spain
| | - Enrique Fraga
- Neurovascular Pathophysiology, Cardiovascular Risk Factor and Brain Function Programme, Centro Nacional de Investigaciones Cardiovasculares (CNIC), Madrid, Spain
- Departamento de Farmacología y Toxicología, Facultad de Medicina, Universidad Complutense de Madrid (UCM), Madrid, Spain
- Instituto de Investigación Hospital 12 de Octubre (i+12), Madrid, Spain
- Instituto Universitario de Investigación en Neuroquímica, Universidad Complutense de Madrid (UCM), Madrid, Spain
| | - Cristina Torres-López
- Neurovascular Pathophysiology, Cardiovascular Risk Factor and Brain Function Programme, Centro Nacional de Investigaciones Cardiovasculares (CNIC), Madrid, Spain
- Departamento de Farmacología y Toxicología, Facultad de Medicina, Universidad Complutense de Madrid (UCM), Madrid, Spain
- Instituto de Investigación Hospital 12 de Octubre (i+12), Madrid, Spain
- Instituto Universitario de Investigación en Neuroquímica, Universidad Complutense de Madrid (UCM), Madrid, Spain
| | - Jesús Pradillo
- Departamento de Farmacología y Toxicología, Facultad de Medicina, Universidad Complutense de Madrid (UCM), Madrid, Spain
- Instituto de Investigación Hospital 12 de Octubre (i+12), Madrid, Spain
- Instituto Universitario de Investigación en Neuroquímica, Universidad Complutense de Madrid (UCM), Madrid, Spain
| | - Ignacio Lizasoain
- Departamento de Farmacología y Toxicología, Facultad de Medicina, Universidad Complutense de Madrid (UCM), Madrid, Spain
- Instituto de Investigación Hospital 12 de Octubre (i+12), Madrid, Spain
- Instituto Universitario de Investigación en Neuroquímica, Universidad Complutense de Madrid (UCM), Madrid, Spain
| | - María Ángeles Moro
- Neurovascular Pathophysiology, Cardiovascular Risk Factor and Brain Function Programme, Centro Nacional de Investigaciones Cardiovasculares (CNIC), Madrid, Spain
- Departamento de Farmacología y Toxicología, Facultad de Medicina, Universidad Complutense de Madrid (UCM), Madrid, Spain
- Instituto de Investigación Hospital 12 de Octubre (i+12), Madrid, Spain
- Instituto Universitario de Investigación en Neuroquímica, Universidad Complutense de Madrid (UCM), Madrid, Spain
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19
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Cheng J, Hu H, Ju Y, Liu J, Wang M, Liu B, Zhang Y. Gut microbiota-derived short-chain fatty acids and depression: deep insight into biological mechanisms and potential applications. Gen Psychiatr 2024; 37:e101374. [PMID: 38390241 PMCID: PMC10882305 DOI: 10.1136/gpsych-2023-101374] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/04/2023] [Accepted: 12/25/2023] [Indexed: 02/24/2024] Open
Abstract
The gut microbiota is a complex and dynamic ecosystem known as the 'second brain'. Composing the microbiota-gut-brain axis, the gut microbiota and its metabolites regulate the central nervous system through neural, endocrine and immune pathways to ensure the normal functioning of the organism, tuning individuals' health and disease status. Short-chain fatty acids (SCFAs), the main bioactive metabolites of the gut microbiota, are involved in several neuropsychiatric disorders, including depression. SCFAs have essential effects on each component of the microbiota-gut-brain axis in depression. In the present review, the roles of major SCFAs (acetate, propionate and butyrate) in the pathophysiology of depression are summarised with respect to chronic cerebral hypoperfusion, neuroinflammation, host epigenome and neuroendocrine alterations. Concluding remarks on the biological mechanisms related to gut microbiota will hopefully address the clinical value of microbiota-related treatments for depression.
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Affiliation(s)
- Junzhe Cheng
- Department of Psychiatry, National Clinical Research Center for Mental Disorders, Second Xiangya Hospital of Central South University, Changsha, Hunan, China
- Clinical Medicine Eight-Year Program, Xiangya School of Medicine, Central South University, Changsha, Hunan, China
| | - Hongkun Hu
- Clinical Medicine Eight-Year Program, Xiangya School of Medicine, Central South University, Changsha, Hunan, China
| | - Yumeng Ju
- Department of Psychiatry, National Clinical Research Center for Mental Disorders, Second Xiangya Hospital of Central South University, Changsha, Hunan, China
- Mental Health Institute of Central South University, China National Technology Institute on Mental Disorders, Hunan Key Laboratory of Psychiatry and Mental Health, Hunan Medical Center for Mental Health, Changsha, Hunan, China
| | - Jin Liu
- Department of Psychiatry, National Clinical Research Center for Mental Disorders, Second Xiangya Hospital of Central South University, Changsha, Hunan, China
- Mental Health Institute of Central South University, China National Technology Institute on Mental Disorders, Hunan Key Laboratory of Psychiatry and Mental Health, Hunan Medical Center for Mental Health, Changsha, Hunan, China
| | - Mi Wang
- Department of Mental Health Center, Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - Bangshan Liu
- Department of Psychiatry, National Clinical Research Center for Mental Disorders, Second Xiangya Hospital of Central South University, Changsha, Hunan, China
- Mental Health Institute of Central South University, China National Technology Institute on Mental Disorders, Hunan Key Laboratory of Psychiatry and Mental Health, Hunan Medical Center for Mental Health, Changsha, Hunan, China
| | - Yan Zhang
- Department of Psychiatry, National Clinical Research Center for Mental Disorders, Second Xiangya Hospital of Central South University, Changsha, Hunan, China
- Mental Health Institute of Central South University, China National Technology Institute on Mental Disorders, Hunan Key Laboratory of Psychiatry and Mental Health, Hunan Medical Center for Mental Health, Changsha, Hunan, China
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20
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Ye Y, Tong HYK, Chong WH, Li Z, Tam PKH, Baptista-Hon DT, Monteiro O. A systematic review and meta-analysis of the effects of long-term antibiotic use on cognitive outcomes. Sci Rep 2024; 14:4026. [PMID: 38369574 PMCID: PMC10874946 DOI: 10.1038/s41598-024-54553-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2023] [Accepted: 02/14/2024] [Indexed: 02/20/2024] Open
Abstract
Antibiotics are indispensable to infection management. However, use of antibiotics can cause gut microbiota dysbiosis, which has been linked to cognitive impairment by disrupting communication between the gut microbiota and the brain. We conducted a systematic review and meta-analysis on the effects of long-term antibiotic use on cognitive outcomes. We have searched PubMed, Web of Science, Embase, Cochrane Library and Scopus for English publications before March 2023 following the PRISMA guidelines. Screening, data extraction, and quality assessment were performed in duplicate. 960 articles were screened and 16 studies which evaluated the effect of any antibiotic compared to no antibiotics or placebo were included. Case-reports, in vitro and animal studies were excluded. We found that antibiotic use was associated with worse cognitive outcomes with a pooled effect estimate of - 0.11 (95% CI - 0.15, - 0.07, Z = 5.45; P < 0.00001). Subgroup analyses performed on adult vs pediatric patients showed a similar association of antibiotic on cognition in both subgroups. Antibiotic treatment was not associated with worse cognition on subjects with existing cognitive impairment. On the other hand, antibiotic treatment on subjects with no prior cognitive impairment was associated with worse cognitive performance later in life. This calls for future well-designed and well-powered studies to investigate the impact of antibiotics on cognitive performance.
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Affiliation(s)
- Yongqin Ye
- Faculty of Medicine, Medical Sciences Division, Macau University of Science and Technology, Avenida da Harmonia, Praia Park, Coloane, 999078, Macao SAR, China
| | | | - Wai Hong Chong
- Faculty of Medicine, Medical Sciences Division, Macau University of Science and Technology, Avenida da Harmonia, Praia Park, Coloane, 999078, Macao SAR, China
| | - Zhiqian Li
- Faculty of Medicine, Medical Sciences Division, Macau University of Science and Technology, Avenida da Harmonia, Praia Park, Coloane, 999078, Macao SAR, China
| | - Paul Kwong Hang Tam
- Faculty of Medicine, Medical Sciences Division, Macau University of Science and Technology, Avenida da Harmonia, Praia Park, Coloane, 999078, Macao SAR, China
| | - Daniel T Baptista-Hon
- Faculty of Medicine, Medical Sciences Division, Macau University of Science and Technology, Avenida da Harmonia, Praia Park, Coloane, 999078, Macao SAR, China
- Division of Systems Medicine, School of Medicine, University of Dundee, Dundee, UK
| | - Olivia Monteiro
- Faculty of Medicine, Medical Sciences Division, Macau University of Science and Technology, Avenida da Harmonia, Praia Park, Coloane, 999078, Macao SAR, China.
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21
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Dong TS, Mayer E. Advances in Brain-Gut-Microbiome Interactions: A Comprehensive Update on Signaling Mechanisms, Disorders, and Therapeutic Implications. Cell Mol Gastroenterol Hepatol 2024; 18:1-13. [PMID: 38336171 PMCID: PMC11126987 DOI: 10.1016/j.jcmgh.2024.01.024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/06/2023] [Revised: 01/30/2024] [Accepted: 01/31/2024] [Indexed: 02/12/2024]
Abstract
The complex, bidirectional interactions between the brain, the gut, and the gut microbes are best referred to as the brain gut microbiome system. Animal and clinical studies have identified specific signaling mechanisms within this system, with gut microbes communicating to the brain through neuronal, endocrine, and immune pathways. The brain, in turn, modulates the composition and function of the gut microbiota through the autonomic nervous system, regulating gut motility, secretion, permeability, and the release of hormones impacting microbial gene expression. Perturbations at any level of these interactions can disrupt the intricate balance, potentially contributing to the pathogenesis of intestinal, metabolic, neurologic, and psychiatric disorders. Understanding these interactions and their underlying mechanisms holds promise for identifying biomarkers, as well as novel therapeutic targets, and for developing more effective treatment strategies for these complex disorders. Continued research will advance our knowledge of this system, with the potential for improved understanding and management of a wide range of disorders. This review provides an update on the current state of knowledge regarding this system, with a focus on recent advancements and emerging research areas.
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Affiliation(s)
- Tien S Dong
- G. Oppenheimer Center for Neurobiology of Stress and Resilience, University of California Los Angeles, Los Angeles, California; Goodman-Luskin Microbiome Center, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, California; The Vatche and Tamar Manoukian Division of Digestive Diseases, Department of Medicine, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, California
| | - Emeran Mayer
- G. Oppenheimer Center for Neurobiology of Stress and Resilience, University of California Los Angeles, Los Angeles, California; Goodman-Luskin Microbiome Center, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, California; The Vatche and Tamar Manoukian Division of Digestive Diseases, Department of Medicine, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, California.
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22
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Aghighi F, Salami M. What we need to know about the germ-free animal models. AIMS Microbiol 2024; 10:107-147. [PMID: 38525038 PMCID: PMC10955174 DOI: 10.3934/microbiol.2024007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2023] [Revised: 01/30/2024] [Accepted: 02/01/2024] [Indexed: 03/26/2024] Open
Abstract
The gut microbiota (GM), as a forgotten organ, refers to the microbial community that resides in the gastrointestinal tract and plays a critical role in a variety of physiological activities in different body organs. The GM affects its targets through neurological, metabolic, immune, and endocrine pathways. The GM is a dynamic system for which exogenous and endogenous factors have negative or positive effects on its density and composition. Since the mid-twentieth century, laboratory animals are known as the major tools for preclinical research; however, each model has its own limitations. So far, two main models have been used to explore the effects of the GM under normal and abnormal conditions: the isolated germ-free and antibiotic-treated models. Both methods have strengths and weaknesses. In many fields of host-microbe interactions, research on these animal models are known as appropriate experimental subjects that enable investigators to directly assess the role of the microbiota on all features of physiology. These animal models present biological model systems to either study outcomes of the absence of microbes, or to verify the effects of colonization with specific and known microbial species. This paper reviews these current approaches and gives advantages and disadvantages of both models.
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Affiliation(s)
| | - Mahmoud Salami
- Physiology Research Center, Institute for Basic Sciences, Kashan University of Medical Sciences, Kashan, I. R. Iran
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23
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Zhao H, Sun M, Zhang Y, Kong W, Fan L, Wang K, Xu Q, Chen B, Dong J, Shi Y, Wang Z, Wang S, Zhuang X, Li Q, Lin F, Yao X, Zhang W, Kong C, Zhang R, Feng D, Zhao X. Connecting the Dots: The Cerebral Lymphatic System as a Bridge Between the Central Nervous System and Peripheral System in Health and Disease. Aging Dis 2024; 15:115-152. [PMID: 37307828 PMCID: PMC10796102 DOI: 10.14336/ad.2023.0516] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2023] [Accepted: 05/16/2023] [Indexed: 06/14/2023] Open
Abstract
As a recently discovered waste removal system in the brain, cerebral lymphatic system is thought to play an important role in regulating the homeostasis of the central nervous system. Currently, more and more attention is being focused on the cerebral lymphatic system. Further understanding of the structural and functional characteristics of cerebral lymphatic system is essential to better understand the pathogenesis of diseases and to explore therapeutic approaches. In this review, we summarize the structural components and functional characteristics of cerebral lymphatic system. More importantly, it is closely associated with peripheral system diseases in the gastrointestinal tract, liver, and kidney. However, there is still a gap in the study of the cerebral lymphatic system. However, we believe that it is a critical mediator of the interactions between the central nervous system and the peripheral system.
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Affiliation(s)
- Hongxiang Zhao
- Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, Shandong, China.
- Shandong Provincial Medicine and Health Key Laboratory of Clinical Anesthesia, School of Anesthesiology, Weifang Medical University, Weifang, China.
| | - Meiyan Sun
- Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, Shandong, China.
- Shandong Provincial Medicine and Health Key Laboratory of Clinical Anesthesia, School of Anesthesiology, Weifang Medical University, Weifang, China.
| | - Yue Zhang
- Shandong Provincial Medicine and Health Key Laboratory of Clinical Anesthesia, School of Anesthesiology, Weifang Medical University, Weifang, China.
| | - Wenwen Kong
- Shandong Provincial Medicine and Health Key Laboratory of Clinical Anesthesia, School of Anesthesiology, Weifang Medical University, Weifang, China.
| | - Lulu Fan
- Shandong Provincial Medicine and Health Key Laboratory of Clinical Anesthesia, School of Anesthesiology, Weifang Medical University, Weifang, China.
| | - Kaifang Wang
- Shandong Provincial Medicine and Health Key Laboratory of Clinical Anesthesia, School of Anesthesiology, Weifang Medical University, Weifang, China.
| | - Qing Xu
- Department of Anesthesiology, Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, Hangzhou, China.
| | - Baiyan Chen
- Shandong Provincial Medicine and Health Key Laboratory of Clinical Anesthesia, School of Anesthesiology, Weifang Medical University, Weifang, China.
| | - Jianxin Dong
- Shandong Provincial Medicine and Health Key Laboratory of Clinical Anesthesia, School of Anesthesiology, Weifang Medical University, Weifang, China.
| | - Yanan Shi
- Shandong Provincial Medicine and Health Key Laboratory of Clinical Anesthesia, School of Anesthesiology, Weifang Medical University, Weifang, China.
| | - Zhengyan Wang
- Shandong Provincial Medicine and Health Key Laboratory of Clinical Anesthesia, School of Anesthesiology, Weifang Medical University, Weifang, China.
| | - ShiQi Wang
- Shandong Provincial Medicine and Health Key Laboratory of Clinical Anesthesia, School of Anesthesiology, Weifang Medical University, Weifang, China.
| | - Xiaoli Zhuang
- Department of Anesthesiology, Beijing Anzhen Hospital, Capital Medical University, Beijing, China.
| | - Qi Li
- Department of Anesthesiology, Ninth People's Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China.
| | - Feihong Lin
- Department of Anesthesiology, Shanghai Pulmonary Hospital, School of Medicine, Tongji University, Shanghai, China.
| | - Xinyu Yao
- Department of Anesthesiology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China.
| | - WenBo Zhang
- Department of Neurosurgery, The Children’s Hospital of Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou, China.
| | - Chang Kong
- Department of Anesthesiology and Critical Care Medicine, Tianjin Nankai Hospital, Tianjin Medical University, Tianjin, China.
| | - Rui Zhang
- Department of Anesthesiology, Affiliated Hospital of Weifang Medical University, Weifang, China.
- Shandong Provincial Medicine and Health Key Laboratory of Clinical Anesthesia, School of Anesthesiology, Weifang Medical University, Weifang, China.
| | - Dayun Feng
- Department of neurosurgery, Tangdu hospital, Fourth Military Medical University, Xi'an, China.
| | - Xiaoyong Zhao
- Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, Shandong, China.
- Department of Anesthesiology, Affiliated Hospital of Weifang Medical University, Weifang, China.
- Shandong Provincial Medicine and Health Key Laboratory of Clinical Anesthesia, School of Anesthesiology, Weifang Medical University, Weifang, China.
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24
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Hristov M, Nankova A, Andreeva-Gateva P. Alterations of the glutamatergic system in diabetes mellitus. Metab Brain Dis 2024; 39:321-333. [PMID: 37747631 DOI: 10.1007/s11011-023-01299-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/16/2023] [Accepted: 09/17/2023] [Indexed: 09/26/2023]
Abstract
Diabetes mellitus (DM) is a chronic disease characterized by elevated blood glucose levels caused by a lack of insulin production (type 1 diabetes) or insulin resistance (type 2 diabetes). It is well known that DM is associated with cognitive deficits and metabolic and neurophysiological changes in the brain. Glutamate is the main excitatory neurotransmitter in the central nervous system that plays a key role in synaptic plasticity, learning, and memory processes. An increasing number of studies have suggested that abnormal activity of the glutamatergic system is implicated in the pathophysiology of DM. Dysfunction of glutamatergic neurotransmission in the central nervous system can provide an important neurobiological substrate for many disorders. Magnetic resonance spectroscopy (MRS) is a non-invasive technique that allows a better understanding of the central nervous system factors by measuring in vivo the concentrations of brain metabolites within the area of interest. Here, we briefly review the MRS studies that have examined glutamate levels in the brain of patients with DM. The present article also summarizes the available data on abnormalities in glutamatergic neurotransmission observed in different animal models of DM. In addition, the role of gut microbiota in the development of glutamatergic alterations in DM is addressed. We speculate that therapeutic strategies targeting the glutamatergic system may be beneficial in the treatment of central nervous system-related changes in diabetic patients.
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Affiliation(s)
- Milen Hristov
- Department of Pharmacology and Toxicology, Faculty of Medicine, Medical University of Sofia, 2 "Zdrave" St, Sofia, 1431, Bulgaria.
| | - Anelia Nankova
- Department of Endocrinology, Faculty of Medicine, Medical University of Sofia, Sofia, 1431, Bulgaria
| | - Pavlina Andreeva-Gateva
- Department of Pharmacology and Toxicology, Faculty of Medicine, Medical University of Sofia, 2 "Zdrave" St, Sofia, 1431, Bulgaria
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25
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Davidson GL, Cienfuegos IA, Dalesman S. Antibiotic-altered gut microbiota explain host memory plasticity and disrupt pace-of-life covariation for an aquatic snail. THE ISME JOURNAL 2024; 18:wrae078. [PMID: 38811063 PMCID: PMC11136587 DOI: 10.1093/ismejo/wrae078] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Received: 11/28/2023] [Revised: 02/21/2024] [Accepted: 04/29/2024] [Indexed: 05/31/2024]
Abstract
There is mounting evidence that intestinal microbiota communities and their genes (the gut microbiome) influence how animals behave and interact with their environment, driving individual variation. Individual covariation in behavioural, physiological, and cognitive traits among individuals along a fast-slow continuum is thought to arise because these traits are linked as part of an adaptive pace-of-life strategy. Yet paradoxically, trait intercorrelation is absent or disrupted in some populations but not others. Here, we provide experimental evidence from aquatic pond snails (Lymnaea stagnalis) that environmental stressors and the gut microbiota explain host phenotypic plasticity and disrupted covariation among traits. Antibiotic exposure at varying levels of ecologically relevant concentrations had multiple effects starting with gut microbiota diversity, differential abundance, and inferred function. Memory declined in line with antibiotic concentrations that caused the most profound gut microbiota disruption, and although pace-of-life traits remained rigid, their covariation did not. Moreover, inferred microbial metabolic pathways with biologically relevant host functions explained individual and treatment variation in phenotypes. Together, our results point to the gut microbiome as a proximate mechanism influencing the emergence and maintenance of phenotypic variation within populations and highlights the need to decipher whether the gut microbiome's sensitivity to environmental pollution facilitates adaptive or maladaptive phenotypic plasticity.
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Affiliation(s)
- Gabrielle L Davidson
- School of Biological Sciences, University of East Anglia, Norwich, NR4 7TJ, United Kingdom
- Department of Psychology, University of Cambridge, Cambridge, CB2 3EB, United Kingdom
- School of Biological, Earth and Environmental Sciences, University College Cork, Cork, Ireland
| | - Ignacio A Cienfuegos
- Department of Life Sciences, Aberystwyth University, Aberystwyth, SY23 3DA, United Kingdom
| | - Sarah Dalesman
- Department of Life Sciences, Aberystwyth University, Aberystwyth, SY23 3DA, United Kingdom
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26
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Prajjwal P, Inban P, Sai VP, Shiny KS, Lam JR, John J, Sulaimanov M, Tekuru Y, Wasi ul Haq M, Marsool MDM, Sivarajan VV, Amir Hussin O. The effects of the interplay between vitamins, antibiotics, and gut microbiota on the pathogenesis and progression of dementia: A systematic review and meta-analysis. Health Sci Rep 2024; 7:e1808. [PMID: 38196569 PMCID: PMC10774544 DOI: 10.1002/hsr2.1808] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2023] [Revised: 09/21/2023] [Accepted: 12/22/2023] [Indexed: 01/11/2024] Open
Abstract
Background Given that there is already evidence of a neural network that connects the brain and gut and that the gut microbiota actively modulates gut health, it is crucial to know which foods, supplements, and medications to use or avoid when treating any disease that causes dementia or cognitive impairment. Previous research has examined the relationships between vitamins, antibiotics, and gut microbiota and the correlations between these factors and dementia. The question arises of how these three factors interact together and if evidence suggests one element is more important than the others in the pathogenesis and development of dementia. Methods The Preferred Reporting Items for Systematic Reviews and Meta-Analysis (PRISMA) standards were followed when conducting this review. The papers' publication dates varied from (2012-2022). Cochrane/EMBASE, PEDro, and PubMed/Medline databases were searched. The precise terms "gut microbiota," vitamins," antibiotics," and "dementia" were included in the search method, along with the conjunctions "OR" and "AND." Results Gut dysbiosis has a significant impact on cognition, brain function, and the development and progression of dementia. The two most popular probiotics used in studies linked to cognition benefits were Lactobacillus and Bifidobacterium. Numerous scales were used to evaluate cognition, but the mini-mental state examination was the most popular, and the most prevalent impairment was Alzheimer's disease. The supplements with the most significant impact on gut microbiota were vitamin B-12 and folic acid. Conclusion This systematic review concluded that vitamins, gut microbiota and antibiotics have a close association with the development of dementia. More research is required to establish causality and elucidate the underlying mechanisms because there is still little evidence connecting the interactions of vitamins, medications, and microbiota with dementia. The complexity of interactions between genetics, lifestyle factors, and comorbidities, as well as the heterogeneity of dementia, may make it more challenging to interpret the findings.
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Affiliation(s)
| | - Pugazhendi Inban
- Internal MedicineGovernment Medical College OmandurarChennaiTamil NaduIndia
| | | | | | | | - Jobby John
- Internal MedicineDr. Somervell Memorial CSI Medical College and HospitalTrivandrumIndia
| | | | - Yogesh Tekuru
- RVM Institute of Medical Sciences and Research CentreSiddipetIndia
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27
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Li N, Xiao X, Zhang H, Bai Z, Li M, Sun J, Dong Y, Zhu W, Fei Z, Sun X, Xiao P, Gao Y, Zhou D. Sterile soil mitigates the intergenerational loss of gut microbial diversity and anxiety-like behavior induced by antibiotics in mice. Brain Behav Immun 2024; 115:179-190. [PMID: 37848098 DOI: 10.1016/j.bbi.2023.10.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/20/2023] [Revised: 10/10/2023] [Accepted: 10/14/2023] [Indexed: 10/19/2023] Open
Abstract
The decline in gut microbial diversity in modern humans is closely associated with the rising prevalence of various diseases. It is imperative to investigate the underlying causes of gut microbial loss and restoring methods. Although the impact of non-perinatal antibiotic use on gut microbiota has been recognized, its intergenerational effects remain unexplored. Our previous research has highlighted soil in the farm environment as a key factor for gut microbiome health by restoring gut microbial diversity and balance. In this study, we investigated the intergenerational consequences of antibiotic exposure and the therapeutic potential of sterile soil. We treated C57BL/6 mice with vancomycin and streptomycin for 2 weeks continuously, followed by a 4-8 week withdrawal period before breeding. The process was repeated across 3 generations. Half of the mice in each generation received an oral sterile soil intervention. We assessed gut microbial diversity, anxiety behavior, microglial reactivity, and gut barrier integrity across generations. Antibiotic exposure led to a decrease in gut microbial diversity over generations, along with aggravated anxiety behavior, microgliosis, and altered intestinal tight junction protein expression. Oral sterile soil intervention restored gut microbial diversity in adult mice across generations, concomitantly rescuing abnormalities in behavior, microgliosis, and intestinal barrier integrity. In conclusion, this study simulated an important process of the progressive loss of gut microbiota diversity in modern humans and demonstrated the potential of sterile soil to reverse this process. This study provides a theoretical and experimental basis for research and interventions targeting multiple modern chronic diseases related to intestinal microorganisms.
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Affiliation(s)
- Na Li
- Key Laboratory of Child Development and Learning Science of Department of Education, Southeast University, Nanjing 210096, China
| | - Xiaoao Xiao
- Key Laboratory of Cardiovascular and Cerebrovascular Medicine, School of Pharmacy, Nanjing Medical University, Nanjing 211166, China
| | - Honglin Zhang
- College of Food Science, Nanjing Xiaozhuang University, Nanjing 211171, China
| | - Zhimao Bai
- Key Laboratory of Environmental Medicine Engineering of Ministry of Education, Southeast University, Nanjing 210009, China
| | - Mengjie Li
- Key Laboratory of Child Development and Learning Science of Department of Education, Southeast University, Nanjing 210096, China
| | - Jia Sun
- Key Laboratory of Cardiovascular and Cerebrovascular Medicine, School of Pharmacy, Nanjing Medical University, Nanjing 211166, China
| | - Yangyang Dong
- Key Laboratory of Child Development and Learning Science of Department of Education, Southeast University, Nanjing 210096, China
| | - Wenyong Zhu
- State Key Laboratory of Bioelectronics, Southeast University, Nanjing 210096, China
| | - Zhongjie Fei
- State Key Laboratory of Bioelectronics, Southeast University, Nanjing 210096, China
| | - Xiao Sun
- State Key Laboratory of Bioelectronics, Southeast University, Nanjing 210096, China
| | - Pengfeng Xiao
- State Key Laboratory of Bioelectronics, Southeast University, Nanjing 210096, China
| | - Yuanqing Gao
- Key Laboratory of Cardiovascular and Cerebrovascular Medicine, School of Pharmacy, Nanjing Medical University, Nanjing 211166, China.
| | - Dongrui Zhou
- Key Laboratory of Child Development and Learning Science of Department of Education, Southeast University, Nanjing 210096, China.
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28
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Beurel E. Stress in the microbiome-immune crosstalk. Gut Microbes 2024; 16:2327409. [PMID: 38488630 PMCID: PMC10950285 DOI: 10.1080/19490976.2024.2327409] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/17/2023] [Accepted: 03/04/2024] [Indexed: 03/19/2024] Open
Abstract
The gut microbiota exerts a mutualistic interaction with the host in a fragile ecosystem and the host intestinal, neural, and immune cells. Perturbations of the gastrointestinal track composition after stress have profound consequences on the central nervous system and the immune system. Reciprocally, brain signals after stress affect the gut microbiota highlighting the bidirectional communication between the brain and the gut. Here, we focus on the potential role of inflammation in mediating stress-induced gut-brain changes and discuss the impact of several immune cells and inflammatory molecules of the gut-brain dialogue after stress. Understanding the impact of microbial changes on the immune system after stress might provide new avenues for therapy.
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Affiliation(s)
- Eléonore Beurel
- Department of Psychiatry and Behavioral Sciences, Miller School of Medicine, University of Miami, Miami, FL, USA
- Department of Biochemistry and Molecular Biology, Miller School of Medicine, University of Miami, Miami, FL, USA
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29
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Hayer SS, Conrin M, French JA, Benson AK, Alvarez S, Cooper K, Fischer A, Alsafwani ZW, Gasper W, Suhr Van Haute MJ, Hassenstab HR, Azadmanesh S, Briardy M, Gerbers S, Jabenis A, Thompson JL, Clayton JB. Antibiotic-induced gut dysbiosis elicits gut-brain axis relevant multi-omic signatures and behavioral and neuroendocrine changes in a nonhuman primate model. Gut Microbes 2024; 16:2305476. [PMID: 38284649 PMCID: PMC10826635 DOI: 10.1080/19490976.2024.2305476] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/02/2023] [Accepted: 01/10/2024] [Indexed: 01/30/2024] Open
Abstract
Emerging evidence indicates that antibiotic-induced dysbiosis can play an etiological role in the pathogenesis of neuropsychiatric disorders. However, most of this evidence comes from rodent models. The objective of this study was to evaluate if antibiotic-induced gut dysbiosis can elicit changes in gut metabolites and behavior indicative of gut-brain axis disruption in common marmosets (Callithrix jacchus) - a nonhuman primate model often used to study sociability and stress. We were able to successfully induce dysbiosis in marmosets using a custom antibiotic cocktail (vancomycin, enrofloxacin and neomycin) administered orally for 28 days. This gut dysbiosis altered gut metabolite profiles, behavior, and stress reactivity. Increase in gut Fusobacterium spp. post-antibiotic administration was a novel dysbiotic response and has not been observed in any rodent or human studies to date. There were significant changes in concentrations of several gut metabolites which are either neurotransmitters (e.g., GABA and serotonin) or have been found to be moderators of gut-brain axis communication in rodent models (e.g., short-chain fatty acids and bile acids). There was an increase in affiliative behavior and sociability in antibiotic-administered marmosets, which might be a coping mechanism in response to gut dysbiosis-induced stress. Increase in urinary cortisol levels after multiple stressors provides more definitive proof that this model of dysbiosis may cause disrupted communication between gut and brain in common marmosets. This study is a first attempt to establish common marmosets as a novel model to study the impact of severe gut dysbiosis on gut-brain axis cross-talk and behavior.
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Affiliation(s)
- Shivdeep S. Hayer
- Department of Biology, University of Nebraska at Omaha, Omaha, NE, USA
- Callitrichid Research Center, University of Nebraska at Omaha, Omaha, NE, USA
- Nebraska Food for Health Center, University of Nebraska-Lincoln, Lincoln, NE, USA
| | - Mackenzie Conrin
- Department of Biology, University of Nebraska at Omaha, Omaha, NE, USA
- Callitrichid Research Center, University of Nebraska at Omaha, Omaha, NE, USA
| | - Jeffrey A. French
- Callitrichid Research Center, University of Nebraska at Omaha, Omaha, NE, USA
- Nebraska Food for Health Center, University of Nebraska-Lincoln, Lincoln, NE, USA
- Program in Neuroscience and Behavior, University of Nebraska at Omaha, Omaha, NE, USA
| | - Andrew K. Benson
- Nebraska Food for Health Center, University of Nebraska-Lincoln, Lincoln, NE, USA
- Department of Food Science and Technology, University of Nebraska-Lincoln, Lincoln, NE, USA
| | - Sophie Alvarez
- Proteomics and Metabolomics Facility, Nebraska Center for Biotechnology, University of Nebraska-Lincoln, Lincoln, NE, USA
| | - Kathryn Cooper
- School of Interdisciplinary Informatics, College of Information Science and Technology, University of Nebraska at Omaha, Omaha, NE, USA
| | - Anne Fischer
- Proteomics and Metabolomics Facility, Nebraska Center for Biotechnology, University of Nebraska-Lincoln, Lincoln, NE, USA
| | - Zahraa Wajih Alsafwani
- School of Interdisciplinary Informatics, College of Information Science and Technology, University of Nebraska at Omaha, Omaha, NE, USA
| | - William Gasper
- School of Interdisciplinary Informatics, College of Information Science and Technology, University of Nebraska at Omaha, Omaha, NE, USA
| | - Mallory J. Suhr Van Haute
- Nebraska Food for Health Center, University of Nebraska-Lincoln, Lincoln, NE, USA
- Department of Food Science and Technology, University of Nebraska-Lincoln, Lincoln, NE, USA
| | - Haley R. Hassenstab
- Department of Biology, University of Nebraska at Omaha, Omaha, NE, USA
- Callitrichid Research Center, University of Nebraska at Omaha, Omaha, NE, USA
| | - Shayda Azadmanesh
- Department of Biology, University of Nebraska at Omaha, Omaha, NE, USA
- Callitrichid Research Center, University of Nebraska at Omaha, Omaha, NE, USA
| | - Missy Briardy
- Department of Biology, University of Nebraska at Omaha, Omaha, NE, USA
- Callitrichid Research Center, University of Nebraska at Omaha, Omaha, NE, USA
| | - Skyler Gerbers
- Department of Biology, University of Nebraska at Omaha, Omaha, NE, USA
- Callitrichid Research Center, University of Nebraska at Omaha, Omaha, NE, USA
| | - Aliyah Jabenis
- Department of Biology, University of Nebraska at Omaha, Omaha, NE, USA
- Callitrichid Research Center, University of Nebraska at Omaha, Omaha, NE, USA
| | - Jennifer L. Thompson
- Department of Biology, University of Nebraska at Omaha, Omaha, NE, USA
- Callitrichid Research Center, University of Nebraska at Omaha, Omaha, NE, USA
| | - Jonathan B. Clayton
- Department of Biology, University of Nebraska at Omaha, Omaha, NE, USA
- Callitrichid Research Center, University of Nebraska at Omaha, Omaha, NE, USA
- Nebraska Food for Health Center, University of Nebraska-Lincoln, Lincoln, NE, USA
- Department of Food Science and Technology, University of Nebraska-Lincoln, Lincoln, NE, USA
- Department of Pathology and Microbiology, University of Nebraska Medical Center, Omaha, NE, USA
- Primate Microbiome Project, University of Nebraska-Lincoln, Lincoln, NE, USA
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30
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Villavicencio-Tejo F, Olesen MA, Navarro L, Calisto N, Iribarren C, García K, Corsini G, Quintanilla RA. Gut-Brain Axis Deregulation and Its Possible Contribution to Neurodegenerative Disorders. Neurotox Res 2023; 42:4. [PMID: 38103074 DOI: 10.1007/s12640-023-00681-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2023] [Revised: 11/10/2023] [Accepted: 12/07/2023] [Indexed: 12/17/2023]
Abstract
The gut-brain axis is an essential communication pathway between the central nervous system (CNS) and the gastrointestinal tract. The human microbiota is composed of a diverse and abundant microbial community that compasses more than 100 trillion microorganisms that participate in relevant physiological functions such as host nutrient metabolism, structural integrity, maintenance of the gut mucosal barrier, and immunomodulation. Recent evidence in animal models has been instrumental in demonstrating the possible role of the microbiota in neurodevelopment, neuroinflammation, and behavior. Furthermore, clinical studies suggested that adverse changes in the microbiota can be considered a susceptibility factor for neurological disorders (NDs), such as Alzheimer's disease (AD), Parkinson's disease (PD), Huntington's disease (HD), and amyotrophic lateral sclerosis (ALS). In this review, we will discuss evidence describing the role of gut microbes in health and disease as a relevant risk factor in the pathogenesis of neurodegenerative disorders, including AD, PD, HD, and ALS.
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Affiliation(s)
- Francisca Villavicencio-Tejo
- Laboratory of Neurodegenerative Diseases, Facultad de Ciencias de La Salud, Instituto de Ciencias Biomédicas, Universidad Autónoma de Chile, El Llano Subercaseaux 2801, 5to Piso, San Miguel 8910060, Santiago, Chile
| | - Margrethe A Olesen
- Laboratory of Neurodegenerative Diseases, Facultad de Ciencias de La Salud, Instituto de Ciencias Biomédicas, Universidad Autónoma de Chile, El Llano Subercaseaux 2801, 5to Piso, San Miguel 8910060, Santiago, Chile
| | - Laura Navarro
- Laboratorio de Microbiología Molecular y Compuestos Bioactivos, Facultad de Ciencias de La Salud, Instituto de Ciencias Biomédicas, Universidad Autónoma de Chile, Santiago, Chile
| | - Nancy Calisto
- Laboratorio de Microbiología Molecular y Compuestos Bioactivos, Facultad de Ciencias de La Salud, Instituto de Ciencias Biomédicas, Universidad Autónoma de Chile, Santiago, Chile
| | - Cristian Iribarren
- Laboratorio de Patógenos Gastrointestinales, Facultad de Ciencias de La Salud, Instituto de Ciencias Biomédicas, Universidad Autónoma de Chile, Santiago, Chile
| | - Katherine García
- Laboratorio de Patógenos Gastrointestinales, Facultad de Ciencias de La Salud, Instituto de Ciencias Biomédicas, Universidad Autónoma de Chile, Santiago, Chile
| | - Gino Corsini
- Laboratorio de Microbiología Molecular y Compuestos Bioactivos, Facultad de Ciencias de La Salud, Instituto de Ciencias Biomédicas, Universidad Autónoma de Chile, Santiago, Chile
| | - Rodrigo A Quintanilla
- Laboratory of Neurodegenerative Diseases, Facultad de Ciencias de La Salud, Instituto de Ciencias Biomédicas, Universidad Autónoma de Chile, El Llano Subercaseaux 2801, 5to Piso, San Miguel 8910060, Santiago, Chile.
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31
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Cerdó T, Ruiz-Rodríguez A, Acuña I, Torres-Espínola FJ, Menchén-Márquez S, Gámiz F, Gallo M, Jehmlich N, Haange SB, von Bergen M, Campoy C, Suárez A. Infant gut microbiota contributes to cognitive performance in mice. Cell Host Microbe 2023; 31:1974-1988.e4. [PMID: 38052208 DOI: 10.1016/j.chom.2023.11.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2023] [Revised: 09/26/2023] [Accepted: 11/07/2023] [Indexed: 12/07/2023]
Abstract
Gut microbiota has been linked to infant neurodevelopment. Here, an association between infant composite cognition and gut microbiota composition is established as soon as 6 months. Higher diversity and evenness characterize microbial communities of infants with composite cognition above (Inf-aboveCC) versus below (Inf-belowCC) median values. Metaproteomic and metabolomic analyses establish an association between microbial histidine ammonia lyase and infant histidine metabolome with cognition. Fecal transplantation from Inf-aboveCC versus Inf-belowCC donors into germ-free mice shows that memory, assessed by a novel object recognition test, is a transmissible trait. Furthermore, Inf-aboveCC mice are enriched in species belonging to Phocaeicola, as well as Bacteroides and Bifidobacterium, previously linked to cognition. Finally, Inf-aboveCC mice show lower fecal histidine and urocanate:histidine and urocanate:glutamate ratios in the perirhinal cortex compared to Inf-belowCC mice. Overall, these findings reveal a causative role of gut microbiota on infant cognition, pointing at the modulation of histidine metabolite levels as a potential underlying mechanism.
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Affiliation(s)
- Tomás Cerdó
- Maimonides Biomedical Research Institute of Córdoba (IMIBIC), Reina Sofia University Hospital, University of Córdoba, 14004 Córdoba, Spain; Centre for Rheumatology Research, Division of Medicine, University College London, London WC1E 6JF, UK
| | - Alicia Ruiz-Rodríguez
- Department of Biochemistry and Molecular Biology 2, Nutrition and Food Technology Institute "José Mataix" (INYTA), Biomedical Research Centre (CIBM), University of Granada, 18016 Granada, Spain; Department of Microbiology, Nutrition and Food Technology Institute "José Mataix" (INYTA), Biomedical Research Centre (CIBM), University of Granada, 18016 Granada, Spain.
| | - Inmaculada Acuña
- Department of Biochemistry and Molecular Biology 2, Nutrition and Food Technology Institute "José Mataix" (INYTA), Biomedical Research Centre (CIBM), University of Granada, 18016 Granada, Spain
| | - Francisco José Torres-Espínola
- EURISTIKOS Excellence Centre for Pediatric Research, Institute of Neurosciences, Biomedical Research Centre (CIBM), University of Granada, 18016 Granada, Spain
| | - Sergio Menchén-Márquez
- Department of Psychobiology, Institute of Neurosciences, Biomedical Research Centre (CIBM), University of Granada, 18016 Granada, Spain
| | - Fernando Gámiz
- Department of Psychobiology, Institute of Neurosciences, Biomedical Research Centre (CIBM), University of Granada, 18016 Granada, Spain
| | - Milagros Gallo
- Department of Psychobiology, Institute of Neurosciences, Biomedical Research Centre (CIBM), University of Granada, 18016 Granada, Spain; Instituto de Investigación Biosanitaria (IBS), 18014 Granada, Spain
| | - Nico Jehmlich
- Department of Molecular System Biology, Helmholtz Centre for Environmental Research-UFZ, Permoserstraße 15, 04318 Leipzig, Germany
| | - Sven-Bastiaan Haange
- Department of Molecular System Biology, Helmholtz Centre for Environmental Research-UFZ, Permoserstraße 15, 04318 Leipzig, Germany
| | - Martin von Bergen
- Department of Molecular System Biology, Helmholtz Centre for Environmental Research-UFZ, Permoserstraße 15, 04318 Leipzig, Germany
| | - Cristina Campoy
- EURISTIKOS Excellence Centre for Pediatric Research, Institute of Neurosciences, Biomedical Research Centre (CIBM), University of Granada, 18016 Granada, Spain; Instituto de Investigación Biosanitaria (IBS), 18014 Granada, Spain; Department of Pediatrics, School of Medicine, University of Granada, 18016 Granada, Spain
| | - Antonio Suárez
- Department of Biochemistry and Molecular Biology 2, Nutrition and Food Technology Institute "José Mataix" (INYTA), Biomedical Research Centre (CIBM), University of Granada, 18016 Granada, Spain
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32
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Taboun ZS, Sadeghi J. The bidirectional relationship between opioids and the gut microbiome: Implications for opioid tolerance and clinical interventions. Int Immunopharmacol 2023; 125:111142. [PMID: 37918085 DOI: 10.1016/j.intimp.2023.111142] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2023] [Revised: 10/06/2023] [Accepted: 10/26/2023] [Indexed: 11/04/2023]
Abstract
Opioids are widely used in treating patients with acute and chronic pain; however, this class of drugs is also commonly abused. Opioid use disorder and associated overdoses are becoming more prevalent as the opioid crisis continues. Chronic opioid use is associated with tolerance, which decreases the efficacy of opioids over time, but also puts individuals at risk of fatal overdoses. Therefore, it is essential to identify strategies to reduce opioid tolerance in those that use these agents. The gut microbiome has been found to play a critical role in opioid tolerance, with opioids causing dysbiosis of the gut, and changes in the gut microbiome impacting opioid tolerance. These changes in turn have a detrimental effect on the gut microbiome, creating a positive feedback cycle. We review the bidirectional relationship between the gut microbiome and opioid tolerance, discuss the role of modulation of the gut microbiome as a potential therapeutic option in opioid-induced gut dysbiosis, and suggest opportunities for further research and clinical interventions.
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Affiliation(s)
- Zahra S Taboun
- Department of Medicine, Schulich School of Medicine and Dentistry, Western University, London, Ontario, Canada
| | - Javad Sadeghi
- School of Engineering, University of British Columbia - Okanagan, Kelowna, British Columbia, Canada.
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33
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Bordag N, Nagy BM, Zügner E, Ludwig H, Foris V, Nagaraj C, Biasin V, Bodenhofer U, Magnes C, Maron BA, Ulrich S, Lange TJ, Hötzenecker K, Pieber T, Olschewski H, Olschewski A. Lipidomics for diagnosis and prognosis of pulmonary hypertension. MEDRXIV : THE PREPRINT SERVER FOR HEALTH SCIENCES 2023:2023.05.17.23289772. [PMID: 37292870 PMCID: PMC10246148 DOI: 10.1101/2023.05.17.23289772] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Background Pulmonary hypertension (PH) poses a significant health threat with high morbidity and mortality, necessitating improved diagnostic tools for enhanced management. Current biomarkers for PH lack functionality and comprehensive diagnostic and prognostic capabilities. Therefore, there is a critical need to develop biomarkers that address these gaps in PH diagnostics and prognosis. Methods To address this need, we employed a comprehensive metabolomics analysis in 233 blood based samples coupled with machine learning analysis. For functional insights, human pulmonary arteries (PA) of idiopathic pulmonary arterial hypertension (PAH) lungs were investigated and the effect of extrinsic FFAs on human PA endothelial and smooth muscle cells was tested in vitro. Results PA of idiopathic PAH lungs showed lipid accumulation and altered expression of lipid homeostasis-related genes. In PA smooth muscle cells, extrinsic FFAs caused excessive proliferation and endothelial barrier dysfunction in PA endothelial cells, both hallmarks of PAH.In the training cohort of 74 PH patients, 30 disease controls without PH, and 65 healthy controls, diagnostic and prognostic markers were identified and subsequently validated in an independent cohort. Exploratory analysis showed a highly impacted metabolome in PH patients and machine learning confirmed a high diagnostic potential. Fully explainable specific free fatty acid (FFA)/lipid-ratios were derived, providing exceptional diagnostic accuracy with an area under the curve (AUC) of 0.89 in the training and 0.90 in the validation cohort, outperforming machine learning results. These ratios were also prognostic and complemented established clinical prognostic PAH scores (FPHR4p and COMPERA2.0), significantly increasing their hazard ratios (HR) from 2.5 and 3.4 to 4.2 and 6.1, respectively. Conclusion In conclusion, our research confirms the significance of lipidomic alterations in PH, introducing innovative diagnostic and prognostic biomarkers. These findings may have the potential to reshape PH management strategies.
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Affiliation(s)
- Natalie Bordag
- Department of Dermatology and Venereology, Medical University of Graz, Graz, Austria
- Ludwig Boltzmann Institute for Lung Vascular Research, Graz, Austria
- CBmed GmbH, Center for Biomarker Research in Medicine, Graz, Austria
- BioMedTech, Graz, Austria
| | - Bence Miklos Nagy
- Ludwig Boltzmann Institute for Lung Vascular Research, Graz, Austria
| | - Elmar Zügner
- Institute for Biomedical Research and Technologies (HEALTH), Joanneum Research Forschungsgesellschaft m.b.H, Graz, Austria
| | - Helga Ludwig
- School of Informatics, Communications, and Media, University of Applied Sciences Upper Austria, Hagenberg, Austria
| | - Vasile Foris
- Ludwig Boltzmann Institute for Lung Vascular Research, Graz, Austria
- Division of Pulmonology, Department of Internal Medicine, Medical University of Graz, Graz, Austria
| | - Chandran Nagaraj
- Ludwig Boltzmann Institute for Lung Vascular Research, Graz, Austria
- BioMedTech, Graz, Austria
| | - Valentina Biasin
- Ludwig Boltzmann Institute for Lung Vascular Research, Graz, Austria
- Division of Physiology, Otto Loewi Research Centre, Medical University of Graz, Graz, Austria
| | - Ulrich Bodenhofer
- School of Informatics, Communications, and Media, University of Applied Sciences Upper Austria, Hagenberg, Austria
| | - Christoph Magnes
- Institute for Biomedical Research and Technologies (HEALTH), Joanneum Research Forschungsgesellschaft m.b.H, Graz, Austria
| | - Bradley A. Maron
- University of Maryland School of Medicine, Baltimore, MD and The University of Maryland-Institute for Health Computing, Bethesda, MD, USA
| | - Silvia Ulrich
- Clinic of Pulmonology, University and University Hospital of Zurich, Zürich, Switzerland
| | - Tobias J. Lange
- Department of Internal Medicine II, Pulmonology and Critical Care, Kreisklinik Bad Reichenhall, Bad Reichenhall, Germany
- Faculty of Medicine, University of Regensburg, Regensburg, Germany
| | - Konrad Hötzenecker
- Department of Thoracic Surgery, Medical University of Vienna, Vienna, Austria
| | - Thomas Pieber
- CBmed GmbH, Center for Biomarker Research in Medicine, Graz, Austria
- Division of Endocrinology and Diabetology, Department of Internal Medicine, Medical University of Graz, Graz Austria
- BioMedTech, Graz, Austria
| | - Horst Olschewski
- Ludwig Boltzmann Institute for Lung Vascular Research, Graz, Austria
- Division of Pulmonology, Department of Internal Medicine, Medical University of Graz, Graz, Austria
- BioMedTech, Graz, Austria
| | - Andrea Olschewski
- Ludwig Boltzmann Institute for Lung Vascular Research, Graz, Austria
- Experimental Anaesthesiology, Department of Anaesthesiology and Intensive Care Medicine, Medical University of Graz, Graz, Austria
- BioMedTech, Graz, Austria
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Joho D, Takahashi M, Suzuki T, Ikuta K, Matsumoto M, Kakeyama M. Probiotic treatment with Bifidobacterium animalis subsp. lactis LKM512 + arginine improves cognitive flexibility in middle-aged mice. Brain Commun 2023; 5:fcad311. [PMID: 38025274 PMCID: PMC10667025 DOI: 10.1093/braincomms/fcad311] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2023] [Revised: 10/12/2023] [Accepted: 11/10/2023] [Indexed: 12/01/2023] Open
Abstract
Cognitive flexibility, the ability of adapting to an ever-changing environment, declines with aging and impaired in early stages of dementia. Although recent studies have indicated there is a relationship between the intestinal microbiota and cognitive function, few studies have shown relationships between intestinal microbiota and cognitive flexibility because of limited behavioural tasks in mice. We recently established a novel cognitive flexibility task for mice using a touchscreen operant apparatus and found that probiotic treatment with a mixture of Bifidobacterium animalis subsp. lactis LKM512 and arginine improved cognitive flexibility in young adult mice. To confirm the effects of the probiotic treatment on cognitive flexibility and to determine whether it is effective even in older age, we here examined the effects of long-term treatment with Bifidobacterium animalis subsp. lactis LKM512 and arginine on cognitive flexibility in middle-aged mice. From 8 to 15 months of age, mice received LKM + Arg or vehicle (controls) orally three times per week and were subjected to the cognitive flexibility task at 13-15 months old. In one of indices of cognitive flexibility, both Bifidobacterium animalis subsp. lactis LKM512 and arginine-treated mice and vehicle-treated mice showed progressively improved performance by repeating reversal tasks, with a small trend that Bifidobacterium animalis subsp. lactis LKM512 and arginine-treated mice showed better learning performance through reversal phases. With respect to the other index of cognitive flexibility, Bifidobacterium animalis subsp. lactis LKM512 and arginine-treated mice showed significantly fewer error choices than control mice at the reversal phase, i.e. Bifidobacterium animalis subsp. lactis LKM512 and arginine improved the performance of behavioural sequencing acquired in the previous phase, which allowed Bifidobacterium animalis subsp. lactis LKM512 and arginine-treated mice to show an early onset of shift to reversal contingency. Taken together, long-term treatment with Bifidobacterium animalis subsp. lactis LKM512 and arginine was found to improve cognitive flexibility in middle-aged mice, indicating that probiotic treatment might contribute to prevention of age-related cognitive decline.
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Affiliation(s)
- Daisuke Joho
- Laboratory of Environmental Brain Science, Faculty of Human Sciences, Waseda University, Tokorozawa 3591192, Japan
| | - Masahira Takahashi
- Laboratory of Environmental Brain Science, Faculty of Human Sciences, Waseda University, Tokorozawa 3591192, Japan
| | - Takeru Suzuki
- Laboratory of Environmental Brain Science, Faculty of Human Sciences, Waseda University, Tokorozawa 3591192, Japan
| | - Kayo Ikuta
- Dairy of Science and Technology Institute, Kyodo Milk Industry Co, Ltd., Tokyo 1900182, Japan
| | - Mitsuharu Matsumoto
- Dairy of Science and Technology Institute, Kyodo Milk Industry Co, Ltd., Tokyo 1900182, Japan
- Research Institute for Environmental Medical Sciences, Waseda University, Tokorozawa 3591192, Japan
| | - Masaki Kakeyama
- Laboratory of Environmental Brain Science, Faculty of Human Sciences, Waseda University, Tokorozawa 3591192, Japan
- Research Institute for Environmental Medical Sciences, Waseda University, Tokorozawa 3591192, Japan
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35
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Aljabbari A, Kihara S, Rades T, Boyd BJ. The biomolecular gastrointestinal corona in oral drug delivery. J Control Release 2023; 363:536-549. [PMID: 37776905 DOI: 10.1016/j.jconrel.2023.09.049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2023] [Revised: 09/24/2023] [Accepted: 09/27/2023] [Indexed: 10/02/2023]
Abstract
The formation of a biomolecular corona on exogenous particles in plasma is well studied and is known to dictate the biodistribution and cellular interactions of nanomedicine formulations. In contrast, while the oral route is the most favorable administration method for pharmaceuticals, little is known about the formation and composition of the corona formed by biomolecules on particles within the gastrointestinal tract. This work reviews the current literature understanding of (1) the formation of drug particles after oral administration, (2) the formation of a biomolecular corona within the gastrointestinal tract ("the gastrointestinal corona"), and (3) the possible implications of the formation of a gastrointestinal corona on the interactions of drug particles with their biological environment. In doing so, this work aims to establish the significance of the formation of a gastrointestinal corona in oral drug delivery to ultimately arrive at new avenues to control the behavior of orally administered pharmaceuticals.
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Affiliation(s)
- Anas Aljabbari
- Department of Pharmacy, Faculty of Health and Medical Sciences, University of Copenhagen, Universitetsparken 2, Copenhagen Ø 2100, Denmark
| | - Shinji Kihara
- Department of Pharmacy, Faculty of Health and Medical Sciences, University of Copenhagen, Universitetsparken 2, Copenhagen Ø 2100, Denmark
| | - Thomas Rades
- Department of Pharmacy, Faculty of Health and Medical Sciences, University of Copenhagen, Universitetsparken 2, Copenhagen Ø 2100, Denmark
| | - Ben J Boyd
- Department of Pharmacy, Faculty of Health and Medical Sciences, University of Copenhagen, Universitetsparken 2, Copenhagen Ø 2100, Denmark; Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, VIC, Australia.
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36
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Ravindran Menon D, Hammerlindl H, Gimenez G, Hammerlindl S, Zuegner E, Torrano J, Bordag N, Emran AA, Giam M, Denil S, Pavelka N, Tan AC, Sturm RA, Haass NK, Rancati G, Herlyn M, Magnes C, Eccles MR, Fujita M, Schaider H. H3K4me3 remodeling induced acquired resistance through O-GlcNAc transferase. Drug Resist Updat 2023; 71:100993. [PMID: 37639774 PMCID: PMC10719180 DOI: 10.1016/j.drup.2023.100993] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2023] [Revised: 07/03/2023] [Accepted: 08/04/2023] [Indexed: 08/31/2023]
Abstract
AIMS Drivers of the drug tolerant proliferative persister (DTPP) state have not been well investigated. Histone H3 lysine-4 trimethylation (H3K4me3), an active histone mark, might enable slow cycling drug tolerant persisters (DTP) to regain proliferative capacity. This study aimed to determine H3K4me3 transcriptionally active sites identifying a key regulator of DTPPs. METHODS Deploying a model of adaptive cancer drug tolerance, H3K4me3 ChIP-Seq data of DTPPs guided identification of top transcription factor binding motifs. These suggested involvement of O-linked N-acetylglucosamine transferase (OGT), which was confirmed by metabolomics analysis and biochemical assays. OGT impact on DTPPs and adaptive resistance was explored in vitro and in vivo. RESULTS H3K4me3 remodeling was widespread in CPG island regions and DNA binding motifs associated with O-GlcNAc marked chromatin. Accordingly, we observed an upregulation of OGT, O-GlcNAc and its binding partner TET1 in chronically treated cancer cells. Inhibition of OGT led to loss of H3K4me3 and downregulation of genes contributing to drug resistance. Genetic ablation of OGT prevented acquired drug resistance in in vivo models. Upstream of OGT, we identified AMPK as an actionable target. AMPK activation by acetyl salicylic acid downregulated OGT with similar effects on delaying acquired resistance. CONCLUSION Our findings uncover a fundamental mechanism of adaptive drug resistance that governs cancer cell reprogramming towards acquired drug resistance, a process that can be exploited to improve response duration and patient outcomes.
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Affiliation(s)
- Dinoop Ravindran Menon
- Frazer Institute, The University of Queensland, Brisbane, QLD, Australia; Department of Dermatology, University of Colorado Denver, Aurora, CO, USA; Department of Medical Oncology, University of Colorado Denver, Aurora, CO, USA
| | - Heinz Hammerlindl
- Frazer Institute, The University of Queensland, Brisbane, QLD, Australia; Department of Pharmaceutical Chemistry, The University of California, San Francisco, San Francisco, CA, USA
| | - Gregory Gimenez
- Department of Pathology, Dunedin School of Medicine, University of Otago, Dunedin, New Zealand
| | - Sabrina Hammerlindl
- Frazer Institute, The University of Queensland, Brisbane, QLD, Australia; Department of Pharmaceutical Chemistry, The University of California, San Francisco, San Francisco, CA, USA
| | - Elmar Zuegner
- Joanneum Research Forschungsgesellschaft m.b.H., HEALTH, Institute for Biomedicine and Health Sciences, Graz, Austria
| | - Joachim Torrano
- Frazer Institute, The University of Queensland, Brisbane, QLD, Australia
| | - Natalie Bordag
- Joanneum Research Forschungsgesellschaft m.b.H., HEALTH, Institute for Biomedicine and Health Sciences, Graz, Austria
| | - Abdullah Al Emran
- Frazer Institute, The University of Queensland, Brisbane, QLD, Australia
| | - Maybelline Giam
- Institute of Medical Biology, Agency for Science, Technology and Research, Immunos Singapore, Singapore
| | - Simon Denil
- Institute of Medical Biology, Agency for Science, Technology and Research, Immunos Singapore, Singapore
| | - Norman Pavelka
- SIgN, the Singapore Institute for Immunology, Agency for Science, Technology and Research, Immunos Singapore, Singapore
| | - Aik-Choon Tan
- Division of Medical Oncology, Department of Medicine, University of Colorado Denver, Aurora, CO 80045, USA
| | - Richard A Sturm
- Frazer Institute, The University of Queensland, Brisbane, QLD, Australia
| | - Nikolas K Haass
- Frazer Institute, The University of Queensland, Brisbane, QLD, Australia
| | - Giulia Rancati
- Institute of Medical Biology, Agency for Science, Technology and Research, Immunos Singapore, Singapore
| | | | - Christoph Magnes
- Joanneum Research Forschungsgesellschaft m.b.H., HEALTH, Institute for Biomedicine and Health Sciences, Graz, Austria
| | - Michael R Eccles
- Department of Pathology, Dunedin School of Medicine, University of Otago, Dunedin, New Zealand; Maurice Wilkins Centre for Molecular Biodiscovery, Auckland, New Zealand
| | - Mayumi Fujita
- Department of Dermatology, University of Colorado Denver, Aurora, CO, USA; Denver VA Medical Center, Denver, CO, USA; Department of Immunology and Microbiology, University of Colorado Denver, Aurora, CO, USA
| | - Helmut Schaider
- Frazer Institute, The University of Queensland, Brisbane, QLD, Australia; Department of Dermatology, Princess Alexandra Hospital, Woolloongabba, QLD, Australia.
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Mitra S, Dash R, Nishan AA, Habiba SU, Moon IS. Brain modulation by the gut microbiota: From disease to therapy. J Adv Res 2023; 53:153-173. [PMID: 36496175 PMCID: PMC10658262 DOI: 10.1016/j.jare.2022.12.001] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2022] [Revised: 11/23/2022] [Accepted: 12/01/2022] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND The gut microbiota (GM) and brain are strongly associated, which significantly affects neuronal development and disorders. GM-derived metabolites modulate neuronal function and influence many cascades in age-related neurodegenerative disorders (NDDs). Because of the dual role of GM in neuroprotection and neurodegeneration, understanding the balance between beneficial and harmful bacteria is crucial for applying this approach to clinical therapies. AIM OF THE REVIEW This review briefly discusses the role of the gut-brain relationship in promoting brain and cognitive function. Although a healthy gut environment is helpful for brain function, gut dysbiosis can disrupt the brain's environment and create a vicious cycle of degenerative cascades. The ways in which the GM population can affect brain function and the development of neurodegeneration are also discussed. In the treatment and management of NDDs, the beneficial effects of methods targeting GM populations and their derivatives, including probiotics, prebiotics, and fecal microbial transplantation (FMT) are also highlighted. KEY SCIENTIFIC CONCEPT OF THE REVIEW In this review, we aimed to provide a deeper understanding of the mechanisms of the gut microbe-brain relationship and their twin roles in neurodegeneration progression and therapeutic applications. Here, we attempted to highlight the different pathways connecting the brain and gut, together with the role of GM in neuroprotection and neuronal development. Furthermore, potential roles of GM metabolites in the pathogenesis of brain disorders and in strategies for its treatment are also investigated. By analyzing existing in vitro, in vivo and clinical studies, this review attempts to identify new and promising therapeutic strategies for central nervous system (CNS) disorders. As the connection between the gut microbe-brain relationship and responses to NDD treatments is less studied, this review will provide new insights into the global mechanisms of GM modulation in disease progression, and identify potential future perspectives for developing new therapies to treat NDDs.
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Affiliation(s)
- Sarmistha Mitra
- Department of Anatomy, Dongguk University College of Medicine, Gyeongju 38066, Republic of Korea
| | - Raju Dash
- Department of Anatomy, Dongguk University College of Medicine, Gyeongju 38066, Republic of Korea
| | - Amena Al Nishan
- Department of Medicine, Chittagong Medical College, Chittagong 4203, Bangladesh
| | - Sarmin Ummey Habiba
- Department of Pharmacy, BGC Trust University Bangladesh, Chittagong 4381, Bangladesh
| | - Il Soo Moon
- Department of Anatomy, Dongguk University College of Medicine, Gyeongju 38066, Republic of Korea.
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Basri R, Alruwaili M, AlRuwaili R, Mohammad Albarrak A, Ali NH. Impact of Nutritional Interventions on Alzheimer's Disease: A Systematic Review and Meta-Analysis. Cureus 2023; 15:e49467. [PMID: 38152793 PMCID: PMC10751620 DOI: 10.7759/cureus.49467] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2023] [Accepted: 11/21/2023] [Indexed: 12/29/2023] Open
Abstract
The most prevalent type of dementia, especially in older persons, is Alzheimer's disease (AD), which has clinical signs of progressive cognitive decline and functional impairment. However, new research indicates that AD patients' dietary patterns and nutritional intake could hold the key to staving off some of the complications. Therefore, the primary aim of this investigation was to analyze various dietary patterns and the subsequent impact of the resulting nutritional intake on AD patients. Various online databases (PubMed, Scopus, Web of Science, and Google Scholar) were searched using appropriate keywords, reference searches, and citation searches. The databases were accessed using the search phrases "Alzheimer's disease," "dietary habits," "minerals," "nutritional profile," and "vitamins." Fifteen of the 21 investigations that we selected for our systematic review and subsequent meta-analysis revealed that micronutrient supplementation and some dietary patterns were helpful in alleviating a few of the symptoms of AD, especially with regard to the progression of dementia in the assessed patients. It was shown that dietary interventions and nutritional adjustments can considerably delay the onset of AD and the varying degrees of dementia that often accompany it. However, there were some areas of ambiguity in our findings because a few of the chosen studies did not document any noticeable improvements in the patient's conditions.
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Affiliation(s)
- Rehana Basri
- Department of Internal Medicine/Neurology, College of Medicine, Jouf University, Sakaka, SAU
| | - Mubarak Alruwaili
- Department of Internal Medicine/Neurology, College of Medicine, Jouf University, Sakaka, SAU
| | - Raed AlRuwaili
- Department of Internal Medicine/Neurology, College of Medicine, Jouf University, Sakaka, SAU
| | - Anas Mohammad Albarrak
- Department of Internal Medicine, College of Medicine, Prince Sattam Bin Abdulaziz University, Al-Kharj, SAU
| | - Naif H Ali
- Department of Internal Medicine, Medical College, Najran University, Najran, SAU
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Piao J, Wang Y, Zhang T, Zhao J, Lv Q, Ruan M, Yu Q, Li B. Antidepressant-like Effects of Representative Types of Food and Their Possible Mechanisms. Molecules 2023; 28:6992. [PMID: 37836833 PMCID: PMC10574116 DOI: 10.3390/molecules28196992] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2023] [Revised: 09/22/2023] [Accepted: 09/30/2023] [Indexed: 10/15/2023] Open
Abstract
Depression is a mental disorder characterized by low mood, lack of motivation, negative cognitive outlook, and sleep problems. Suicide may occur in severe cases, although suicidal thoughts are not seen in all cases. Globally, an estimated 350 million individuals grapple with depression, as reported by the World Health Organization. At present, drug and psychological treatments are the main treatments, but they produce insufficient responses in many patients and fail to work at all in many others. Consequently, treating depression has long been an important topic in society. Given the escalating prevalence of depression, a comprehensive strategy for managing its symptoms and impacts has garnered significant attention. In this context, nutritional psychiatry emerges as a promising avenue. Extensive research has underscored the potential benefits of a well-rounded diet rich in fruits, vegetables, fish, and meat in alleviating depressive symptoms. However, the intricate mechanisms linking dietary interventions to brain function alterations remain largely unexplored. This review delves into the intricate relationship between dietary patterns and depression, while exploring the plausible mechanisms underlying the impact of dietary interventions on depression management. As we endeavor to unveil the pathways through which nutrition influences mental well-being, a holistic perspective that encompasses multidisciplinary strategies gains prominence, potentially reshaping how we approach and address depression.
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Affiliation(s)
- Jingjing Piao
- Jilin Provincial Key Laboratory for Molecular and Chemical Genetics, The Second Hospital of Jilin University, Changchun 130041, China; (J.P.); (T.Z.); (J.Z.); (Q.L.); (M.R.); (Q.Y.)
- Engineering Laboratory for Screening of Antidepressant Drugs, Jilin Province Development and Reform Commission, Changchun 130041, China
| | - Yingwei Wang
- Changchun Zhuoyi Biological Co., Ltd., Changchun 130616, China;
| | - Tianqi Zhang
- Jilin Provincial Key Laboratory for Molecular and Chemical Genetics, The Second Hospital of Jilin University, Changchun 130041, China; (J.P.); (T.Z.); (J.Z.); (Q.L.); (M.R.); (Q.Y.)
- Engineering Laboratory for Screening of Antidepressant Drugs, Jilin Province Development and Reform Commission, Changchun 130041, China
| | - Jiayu Zhao
- Jilin Provincial Key Laboratory for Molecular and Chemical Genetics, The Second Hospital of Jilin University, Changchun 130041, China; (J.P.); (T.Z.); (J.Z.); (Q.L.); (M.R.); (Q.Y.)
- Engineering Laboratory for Screening of Antidepressant Drugs, Jilin Province Development and Reform Commission, Changchun 130041, China
| | - Qianyu Lv
- Jilin Provincial Key Laboratory for Molecular and Chemical Genetics, The Second Hospital of Jilin University, Changchun 130041, China; (J.P.); (T.Z.); (J.Z.); (Q.L.); (M.R.); (Q.Y.)
- Engineering Laboratory for Screening of Antidepressant Drugs, Jilin Province Development and Reform Commission, Changchun 130041, China
| | - Mengyu Ruan
- Jilin Provincial Key Laboratory for Molecular and Chemical Genetics, The Second Hospital of Jilin University, Changchun 130041, China; (J.P.); (T.Z.); (J.Z.); (Q.L.); (M.R.); (Q.Y.)
- Engineering Laboratory for Screening of Antidepressant Drugs, Jilin Province Development and Reform Commission, Changchun 130041, China
| | - Qin Yu
- Jilin Provincial Key Laboratory for Molecular and Chemical Genetics, The Second Hospital of Jilin University, Changchun 130041, China; (J.P.); (T.Z.); (J.Z.); (Q.L.); (M.R.); (Q.Y.)
- Engineering Laboratory for Screening of Antidepressant Drugs, Jilin Province Development and Reform Commission, Changchun 130041, China
| | - Bingjin Li
- Jilin Provincial Key Laboratory for Molecular and Chemical Genetics, The Second Hospital of Jilin University, Changchun 130041, China; (J.P.); (T.Z.); (J.Z.); (Q.L.); (M.R.); (Q.Y.)
- Engineering Laboratory for Screening of Antidepressant Drugs, Jilin Province Development and Reform Commission, Changchun 130041, China
- Jilin Provincial Key Laboratory on Target of Traditional Chinese Medicine with Anti-Depressive Effect, Changchun 130041, China
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40
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Zhang Y, Sharma S, Tom L, Liao YT, Wu VCH. Gut Phageome-An Insight into the Role and Impact of Gut Microbiome and Their Correlation with Mammal Health and Diseases. Microorganisms 2023; 11:2454. [PMID: 37894111 PMCID: PMC10609124 DOI: 10.3390/microorganisms11102454] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2023] [Revised: 09/25/2023] [Accepted: 09/28/2023] [Indexed: 10/29/2023] Open
Abstract
The gut microbiota, including bacteria, archaea, fungi, and viruses, compose a diverse mammalian gut environment and are highly associated with host health. Bacteriophages, the viruses that infect bacteria, are the primary members of the gastrointestinal virome, known as the phageome. However, our knowledge regarding the gut phageome remains poorly understood. In this review, the critical role of the gut phageome and its correlation with mammalian health were summarized. First, an overall profile of phages across the gastrointestinal tract and their dynamic roles in shaping the surrounding microorganisms was elucidated. Further, the impacts of the gut phageome on gastrointestinal fitness and the bacterial community were highlighted, together with the influence of diets on the gut phageome composition. Additionally, new reports on the role of the gut phageome in the association of mammalian health and diseases were reviewed. Finally, a comprehensive update regarding the advanced phage benchwork and contributions of phage-based therapy to prevent/treat mammalian diseases was provided. This study provides insights into the role and impact of the gut phagenome in gut environments closely related to mammal health and diseases. The findings provoke the potential applications of phage-based diagnosis and therapy in clinical and agricultural fields. Future research is needed to uncover the underlying mechanism of phage-bacterial interactions in gut environments and explore the maintenance of mammalian health via phage-regulated gut microbiota.
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Affiliation(s)
| | | | | | | | - Vivian C. H. Wu
- Produce Safety and Microbiology Research Unit, U.S. Department of Agriculture, Agricultural Research Service, Western Regional Research Center, Albany, CA 94710, USA
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Joo MK, Shin YJ, Kim DH. Cefaclor causes vagus nerve-mediated depression-like symptoms with gut dysbiosis in mice. Sci Rep 2023; 13:15529. [PMID: 37726354 PMCID: PMC10509198 DOI: 10.1038/s41598-023-42690-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2023] [Accepted: 09/13/2023] [Indexed: 09/21/2023] Open
Abstract
Antibiotics are increasingly recognized as causing neuropsychiatric side effects including depression and anxiety. Alterations in central serotonin and 5-HT receptor expression are implicated in the pathogenesis of anxiety and depression, which are highly comorbid with gastrointestinal disorders. Nevertheless, it is still unclear how antibiotics can cause anxiety and depression. In this study, oral administration of cefaclor, a second-generation cephalosporin antibiotic, induced anxiety- and depression-like behaviors and colitis with gut microbiota alteration in mice. Cefaclor reduced serotonin levels and fluctuated 5-HT receptor mRNA expressions such as Htr1a, Htr1b, and Htr6 in the hippocampus. Vagotomy attenuated the cefaclor-induced anxiety- and depression-like symptoms, while the cefaclor-induced changes in gut bacteria alteration and colitis were not affected. Fluoxetine attenuated cefaclor-induced anxiety- and depression-like behaviors. Furthermore, fluoxetine decreased cefaclor-resistant Enterobacteriaceae and Enterococcaceae. Taken together, our findings suggest that the use of antibiotics, particularly, cefaclor may cause gut dysbiosis-dependent anxiety and depression through the microbiota-gut-blood-brain and microbiota-gut-vagus nerve-brain pathway. Targeting antibiotics-resistant pathogenic bacteria may be a promising therapeutic strategy for the treatment of anxiety and depression.
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Affiliation(s)
- Min-Kyung Joo
- Neurobiota Research Center and Department of Biomedical and Pharmaceutical Sciences, College of Pharmacy, Kyung Hee University, Seoul, 02447, Korea
| | - Yoon-Jung Shin
- Neurobiota Research Center and Department of Biomedical and Pharmaceutical Sciences, College of Pharmacy, Kyung Hee University, Seoul, 02447, Korea
| | - Dong-Hyun Kim
- Neurobiota Research Center and Department of Biomedical and Pharmaceutical Sciences, College of Pharmacy, Kyung Hee University, Seoul, 02447, Korea.
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42
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Xie J, Bruggeman A, De Nolf C, Vandendriessche C, Van Imschoot G, Van Wonterghem E, Vereecke L, Vandenbroucke RE. Gut microbiota regulates blood-cerebrospinal fluid barrier function and Aβ pathology. EMBO J 2023; 42:e111515. [PMID: 37427561 PMCID: PMC10476279 DOI: 10.15252/embj.2022111515] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2022] [Revised: 05/20/2023] [Accepted: 06/02/2023] [Indexed: 07/11/2023] Open
Abstract
Accumulating evidence indicates that gut microbiota dysbiosis is associated with increased blood-brain barrier (BBB) permeability and contributes to Alzheimer's disease (AD) pathogenesis. In contrast, the influence of gut microbiota on the blood-cerebrospinal fluid (CSF) barrier has not yet been studied. Here, we report that mice lacking gut microbiota display increased blood-CSF barrier permeability associated with disorganized tight junctions (TJs), which can be rescued by recolonization with gut microbiota or supplementation with short-chain fatty acids (SCFAs). Our data reveal that gut microbiota is important not only for the establishment but also for the maintenance of a tight barrier. Also, we report that the vagus nerve plays an important role in this process and that SCFAs can independently tighten the barrier. Administration of SCFAs in AppNL-G-F mice improved the subcellular localization of TJs at the blood-CSF barrier, reduced the β-amyloid (Aβ) burden, and affected microglial phenotype. Altogether, our results suggest that modulating the microbiota and administering SCFAs might have therapeutic potential in AD via blood-CSF barrier tightening and maintaining microglial activity and Aβ clearance.
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Affiliation(s)
- Junhua Xie
- VIB Center for Inflammation ResearchGhentBelgium
- Department of Biomedical Molecular BiologyGhent UniversityGhentBelgium
| | - Arnout Bruggeman
- VIB Center for Inflammation ResearchGhentBelgium
- Department of Biomedical Molecular BiologyGhent UniversityGhentBelgium
- Department of NeurologyGhent University HospitalGhentBelgium
| | - Clint De Nolf
- VIB Center for Inflammation ResearchGhentBelgium
- Department of Biomedical Molecular BiologyGhent UniversityGhentBelgium
- Department of Internal Medicine and PediatricsGhent UniversityGhentBelgium
| | - Charysse Vandendriessche
- VIB Center for Inflammation ResearchGhentBelgium
- Department of Biomedical Molecular BiologyGhent UniversityGhentBelgium
| | - Griet Van Imschoot
- VIB Center for Inflammation ResearchGhentBelgium
- Department of Biomedical Molecular BiologyGhent UniversityGhentBelgium
| | - Elien Van Wonterghem
- VIB Center for Inflammation ResearchGhentBelgium
- Department of Biomedical Molecular BiologyGhent UniversityGhentBelgium
| | - Lars Vereecke
- VIB Center for Inflammation ResearchGhentBelgium
- Department of Internal Medicine and PediatricsGhent UniversityGhentBelgium
- Ghent Gut Inflammation Group (GGIG)Ghent UniversityGhentBelgium
| | - Roosmarijn E Vandenbroucke
- VIB Center for Inflammation ResearchGhentBelgium
- Department of Biomedical Molecular BiologyGhent UniversityGhentBelgium
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43
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Hayer SS, Hwang S, Clayton JB. Antibiotic-induced gut dysbiosis and cognitive, emotional, and behavioral changes in rodents: a systematic review and meta-analysis. Front Neurosci 2023; 17:1237177. [PMID: 37719161 PMCID: PMC10504664 DOI: 10.3389/fnins.2023.1237177] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2023] [Accepted: 08/18/2023] [Indexed: 09/19/2023] Open
Abstract
There are previous epidemiological studies reporting associations between antibiotic use and psychiatric symptoms. Antibiotic-induced gut dysbiosis and alteration of microbiota-gut-brain axis communication has been proposed to play a role in this association. In this systematic review and meta-analysis, we reviewed published articles that have presented results on changes in cognition, emotion, and behavior in rodents (rats and mice) after antibiotic-induced gut dysbiosis. We searched three databases-PubMed, Web of Science, and SCOPUS to identify such articles using dedicated search strings and extracted data from 48 articles. Increase in anxiety and depression-like behavior was reported in 32.7 and 40.7 percent of the study-populations, respectively. Decrease in sociability, social novelty preference, recognition memory and spatial cognition was found in 18.1, 35.3, 26.1, and 62.5 percent of the study-populations, respectively. Only one bacterial taxon (increase in gut Proteobacteria) showed statistically significant association with behavioral changes (increase in anxiety). There were no consistent findings with statistical significance for the potential biomarkers [Brain-derived neurotrophic factor (BDNF) expression in the hippocampus, serum corticosterone and circulating IL-6 and IL-1β levels]. Results of the meta-analysis revealed a significant association between symptoms of negative valence system (including anxiety and depression) and cognitive system (decreased spatial cognition) with antibiotic intake (p < 0.05). However, between-study heterogeneity and publication bias were statistically significant (p < 0.05). Risk of bias was evaluated to be high in the majority of the studies. We identified and discussed several reasons that could contribute to the heterogeneity between the results of the studies examined. The results of the meta-analysis provide promising evidence that there is indeed an association between antibiotic-induced gut dysbiosis and psychopathologies. However, inconsistencies in the implemented methodologies make generalizing these results difficult. Gut microbiota depletion using antibiotics may be a useful strategy to evaluate if and how gut microbes influence cognition, emotion, and behavior, but the heterogeneity in methodologies used precludes any definitive interpretations for a translational impact on clinical practice.
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Affiliation(s)
- Shivdeep S. Hayer
- Department of Biology, University of Nebraska at Omaha, Omaha, NE, United States
- Callitrichid Research Center, University of Nebraska at Omaha, Omaha, NE, United States
- Nebraska Food for Health Center, University of Nebraska-Lincoln, Lincoln, NE, United States
- Department of Population Medicine, University of Guelph, Guelph, ON, Canada
| | - Soonjo Hwang
- Department of Psychiatry, University of Nebraska Medical Center, Omaha, NE, United States
| | - Jonathan B. Clayton
- Department of Biology, University of Nebraska at Omaha, Omaha, NE, United States
- Callitrichid Research Center, University of Nebraska at Omaha, Omaha, NE, United States
- Nebraska Food for Health Center, University of Nebraska-Lincoln, Lincoln, NE, United States
- Department of Food Science and Technology, University of Nebraska-Lincoln, Lincoln, NE, United States
- Department of Pathology and Microbiology, University of Nebraska Medical Center, Omaha, NE, United States
- Primate Microbiome Project, University of Nebraska-Lincoln, Lincoln, NE, United States
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Kuijer EJ, Steenbergen L. The microbiota-gut-brain axis in hippocampus-dependent learning and memory: current state and future challenges. Neurosci Biobehav Rev 2023; 152:105296. [PMID: 37380040 DOI: 10.1016/j.neubiorev.2023.105296] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2022] [Revised: 05/15/2023] [Accepted: 06/23/2023] [Indexed: 06/30/2023]
Abstract
A fundamental shift in neuroscience suggests bidirectional interaction of gut microbiota with the healthy and dysfunctional brain. This microbiota-gut-brain axis has mainly been investigated in stress-related psychopathology (e.g. depression, anxiety). The hippocampus, a key structure in both the healthy brain and psychopathologies, is implicated by work in rodents that suggests gut microbiota substantially impact hippocampal-dependent learning and memory. However, understanding microbiota-hippocampus mechanisms in health and disease, and translation to humans, is hampered by the absence of a coherent evaluative approach. We review the current knowledge regarding four main gut microbiota-hippocampus routes in rodents: through the vagus nerve; via the hypothalamus-pituitary-adrenal-axis; by metabolism of neuroactive substances; and through modulation of host inflammation. Next, we suggest an approach including testing (biomarkers of) the four routes as a function of the influence of gut microbiota (composition) on hippocampal-dependent (dys)functioning. We argue that such an approach is necessary to proceed from the current state of preclinical research to beneficial application in humans to optimise microbiota-based strategies to treat and enhance hippocampal-dependent memory (dys)functions.
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Affiliation(s)
- Eloise J Kuijer
- Leiden University Medical Centre, Leiden, the Netherlands; Department of Life Sciences, University of Bath, United Kingdom.
| | - Laura Steenbergen
- Clinical Psychology Unit, Leiden University & Leiden Institute for Brain and Cognition, Leiden, the Netherlands
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Huang D, Yang Y, Song W, Jiang C, Zhang Y, Zhang A, Lin Z, Ke X. Untargeted metabonomic analysis of a cerebral stroke model in rats: a study based on UPLC-MS/MS. Front Neurosci 2023; 17:1084813. [PMID: 37614341 PMCID: PMC10442664 DOI: 10.3389/fnins.2023.1084813] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Accepted: 07/18/2023] [Indexed: 08/25/2023] Open
Abstract
Introduction Brain tissue damage caused by ischemic stroke can trigger changes in the body's metabolic response, and understanding the changes in the metabolic response of the gut after stroke can contribute to research on poststroke brain function recovery. Despite the increase in international research on poststroke metabolic mechanisms and the availability of powerful research tools in recent years, there is still an urgent need for poststroke metabolic studies. Metabolomic examination of feces from a cerebral ischemia-reperfusion rat model can provide new insights into poststroke metabolism and identify key metabolic pathways, which will help reveal diagnostic and therapeutic targets as well as inspire pathophysiological studies after stroke. Methods We randomly divided 16 healthy adult pathogen-free male Sprague-Dawley (SD) rats into the normal group and the study group, which received middle cerebral artery occlusion/reperfusion (MCAO/R). Ultra-performance liquid chromatography-tandem mass spectrometry (UPLCMS/MS) was used to determine the identities and concentrations of metabolites across all groups, and filtered high-quality data were analyzed for differential screening and differential metabolite functional analysis. Results After 1 and 14 days of modeling, compared to the normal group, rats in the study group showed significant neurological deficits (p < 0.001) and significantly increased infarct volume (day 1: p < 0.001; day 14: p = 0.001). Mass spectra identified 1,044 and 635 differential metabolites in rat feces in positive and negative ion modes, respectively, which differed significantly between the normal and study groups. The metabolites with increased levels identified in the study group were involved in tryptophan metabolism (p = 0.036678, p < 0.05), arachidonic acid metabolism (p = 0.15695), cysteine and methionine metabolism (p = 0.24705), and pyrimidine metabolism (p = 0.3413), whereas the metabolites with decreased levels were involved in arginine and proline metabolism (p = 0.15695) and starch and sucrose metabolism (p = 0.52256). Discussion We determined that UPLC-MS/MS could be employed for untargeted metabolomics research. Moreover, tryptophan metabolic pathways may have been disordered in the study group. Alterations in the tryptophan metabolome may provide additional theoretical and data support for elucidating stroke pathogenesis and selecting pathways for intervention.
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Affiliation(s)
- Dunbing Huang
- Department of Rehabilitation Medicine, Shanghai Fourth People’s Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Yihan Yang
- College of Rehabilitation Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, China
| | - Wei Song
- Department of Rehabilitation Medicine, Shanghai Fourth People’s Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Cai Jiang
- Shengli Clinical Medical College of Fujian Medical University, Fuzhou, China
- Second Rehabilitation Department, Fujian Provincial Hospital, Fuzhou, China
- Fujian Provincial Center for Geriatrics, Fujian Provincial Hospital, Fuzhou, China
- Fujian Key Laboratory of Geriatrics Diseases, Fujian Provincial Hospital, Fuzhou, China
- Department of Complementary Medicine, University of Johannesburg, Johannesburg, South Africa
| | - Yuhao Zhang
- Department of Rehabilitation Medicine, Nanjing Lishui District Hospital of Traditional Chinese medicine, Nanjing, China
| | - Anren Zhang
- Department of Rehabilitation Medicine, Shanghai Fourth People’s Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Zhonghua Lin
- Shengli Clinical Medical College of Fujian Medical University, Fuzhou, China
- Second Rehabilitation Department, Fujian Provincial Hospital, Fuzhou, China
- Fujian Provincial Center for Geriatrics, Fujian Provincial Hospital, Fuzhou, China
- Fujian Key Laboratory of Geriatrics Diseases, Fujian Provincial Hospital, Fuzhou, China
- Department of Complementary Medicine, University of Johannesburg, Johannesburg, South Africa
| | - Xiaohua Ke
- Department of Rehabilitation Medicine, Shanghai Fourth People’s Hospital, School of Medicine, Tongji University, Shanghai, China
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Liu Z, Ling Y, Peng Y, Han S, Ren Y, Jing Y, Fan W, Su Y, Mu C, Zhu W. Regulation of serotonin production by specific microbes from piglet gut. J Anim Sci Biotechnol 2023; 14:111. [PMID: 37542282 PMCID: PMC10403853 DOI: 10.1186/s40104-023-00903-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2023] [Accepted: 06/04/2023] [Indexed: 08/06/2023] Open
Abstract
BACKGROUND Serotonin is an important signaling molecule that regulates secretory and sensory functions in the gut. Gut microbiota has been demonstrated to affect serotonin synthesis in rodent models. However, how gut microbes regulate intestinal serotonin production in piglets remains vague. To investigate the relationship between microbiota and serotonin specifically in the colon, microbial composition and serotonin concentration were analyzed in ileum-cannulated piglets subjected to antibiotic infusion from the ileum when comparing with saline infusion. Microbes that correlated positively with serotonin production were isolated from piglet colon and were further used to investigate the regulation mechanisms on serotonin production in IPEC-J2 and a putative enterochromaffin cell line RIN-14B cells. RESULTS Antibiotic infusion increased quantities of Lactobacillus amylovorus (LA) that positively correlated with increased serotonin concentrations in the colon, while no effects observed for Limosilactobacillus reuteri (LR). To understand how microbes regulate serotonin, representative strains of LA, LR, and Streptococcus alactolyticus (SA, enriched in feces from prior observation) were selected for cell culture studies. Compared to the control group, LA, LR and SA supernatants significantly up-regulated tryptophan hydroxylase 1 (TPH1) expression and promoted serotonin production in IPEC-J2 cells, while in RIN-14B cells only LA exerted similar action. To investigate potential mechanisms mediated by microbe-derived molecules, microbial metabolites including lactate, acetate, glutamine, and γ-aminobutyric acid were selected for cell treatment based on computational and metabolite profiling in bacterial supernatant. Among these metabolites, acetate upregulated the expression of free fatty acid receptor 3 and TPH1 while downregulated indoleamine 2,3-dioxygenase 1. Similar effects were also recapitulated when treating the cells with AR420626, an agonist targeting free fatty acid receptor 3. CONCLUSIONS Overall, these results suggest that Lactobacillus amylovorus showed a positive correlation with serotonin production in the pig gut and exhibited a remarkable ability to regulate serotonin production in cell cultures. These findings provide evidence that microbial metabolites mediate the dialogue between microbes and host, which reveals a potential approach using microbial manipulation to regulate intestinal serotonin biosynthesis.
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Affiliation(s)
- Ziyu Liu
- Laboratory of Gastrointestinal Microbiology, College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, China
- National Center for International Research on Animal Gut Nutrition, National Experimental Teaching Demonstration Center of Animal Science, Nanjing Agricultural University, Nanjing, China
| | - Yidan Ling
- Laboratory of Gastrointestinal Microbiology, College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, China
- National Center for International Research on Animal Gut Nutrition, National Experimental Teaching Demonstration Center of Animal Science, Nanjing Agricultural University, Nanjing, China
| | - Yu Peng
- Hubei CAT Biological Technology Co., Ltd., Wuhan, China
| | - Shuibing Han
- Laboratory of Gastrointestinal Microbiology, College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, China
- National Center for International Research on Animal Gut Nutrition, National Experimental Teaching Demonstration Center of Animal Science, Nanjing Agricultural University, Nanjing, China
| | - Yuting Ren
- Laboratory of Gastrointestinal Microbiology, College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, China
- National Center for International Research on Animal Gut Nutrition, National Experimental Teaching Demonstration Center of Animal Science, Nanjing Agricultural University, Nanjing, China
| | - Yujia Jing
- Laboratory of Gastrointestinal Microbiology, College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, China
- National Center for International Research on Animal Gut Nutrition, National Experimental Teaching Demonstration Center of Animal Science, Nanjing Agricultural University, Nanjing, China
| | - Wenlu Fan
- Laboratory of Gastrointestinal Microbiology, College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, China
- National Center for International Research on Animal Gut Nutrition, National Experimental Teaching Demonstration Center of Animal Science, Nanjing Agricultural University, Nanjing, China
| | - Yong Su
- Laboratory of Gastrointestinal Microbiology, College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, China
- National Center for International Research on Animal Gut Nutrition, National Experimental Teaching Demonstration Center of Animal Science, Nanjing Agricultural University, Nanjing, China
| | - Chunlong Mu
- Laboratory of Gastrointestinal Microbiology, College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, China.
- National Center for International Research on Animal Gut Nutrition, National Experimental Teaching Demonstration Center of Animal Science, Nanjing Agricultural University, Nanjing, China.
- Department of Biochemistry and Molecular Biology, Cumming School of Medicine, University of Calgary, Calgary, Canada.
| | - Weiyun Zhu
- Laboratory of Gastrointestinal Microbiology, College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, China.
- National Center for International Research on Animal Gut Nutrition, National Experimental Teaching Demonstration Center of Animal Science, Nanjing Agricultural University, Nanjing, China.
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Zeng M, Peng M, Liang J, Sun H. The Role of Gut Microbiota in Blood-Brain Barrier Disruption after Stroke. Mol Neurobiol 2023:10.1007/s12035-023-03512-7. [PMID: 37498481 DOI: 10.1007/s12035-023-03512-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2023] [Accepted: 07/13/2023] [Indexed: 07/28/2023]
Abstract
Growing evidence has proved that alterations in the gut microbiota have been linked to neurological disorders including stroke. Structural and functional disruption of the blood-brain barrier (BBB) is observed after stroke. In this context, there is pioneering evidence supporting that gut microbiota may be involved in the pathogenesis of stroke by regulating the BBB function. However, only a few experimental studies have been performed on stroke models to observe the BBB by altering the structure of gut microbiota, which warrant further exploration. Therefore, in order to provide a novel mechanism for stroke and highlight new insights into BBB modification as a stroke intervention, this review summarizes existing evidence of the relationship between gut microbiota and BBB integrity and discusses the mechanisms of gut microbiota on BBB dysfunction and its role in stroke.
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Affiliation(s)
- Meiqin Zeng
- Clinical Biobank Center, Microbiome Medicine Center, Department of Laboratory Medicine, Guangdong Provincial Clinical Research Center for Laboratory Medicine, Zhujiang Hospital, Southern Medical University, 510280, Guangzhou, China
- Neurosurgery Center, The National Key Clinical Specialty, The Engineering Technology Research Center of Education Ministry of China On Diagnosis and Treatment of Cerebrovascular Disease, Guangdong Provincial Key Laboratory On Brain Function Repair and Regeneration, The Neurosurgery Institute of Guangdong Province, Zhujiang Hospital, Southern Medical University, Guangzhou, 510282, China
| | - Meichang Peng
- Clinical Biobank Center, Microbiome Medicine Center, Department of Laboratory Medicine, Guangdong Provincial Clinical Research Center for Laboratory Medicine, Zhujiang Hospital, Southern Medical University, 510280, Guangzhou, China
- Neurosurgery Center, The National Key Clinical Specialty, The Engineering Technology Research Center of Education Ministry of China On Diagnosis and Treatment of Cerebrovascular Disease, Guangdong Provincial Key Laboratory On Brain Function Repair and Regeneration, The Neurosurgery Institute of Guangdong Province, Zhujiang Hospital, Southern Medical University, Guangzhou, 510282, China
| | - Jianhao Liang
- Clinical Biobank Center, Microbiome Medicine Center, Department of Laboratory Medicine, Guangdong Provincial Clinical Research Center for Laboratory Medicine, Zhujiang Hospital, Southern Medical University, 510280, Guangzhou, China
- Neurosurgery Center, The National Key Clinical Specialty, The Engineering Technology Research Center of Education Ministry of China On Diagnosis and Treatment of Cerebrovascular Disease, Guangdong Provincial Key Laboratory On Brain Function Repair and Regeneration, The Neurosurgery Institute of Guangdong Province, Zhujiang Hospital, Southern Medical University, Guangzhou, 510282, China
| | - Haitao Sun
- Clinical Biobank Center, Microbiome Medicine Center, Department of Laboratory Medicine, Guangdong Provincial Clinical Research Center for Laboratory Medicine, Zhujiang Hospital, Southern Medical University, 510280, Guangzhou, China.
- Neurosurgery Center, The National Key Clinical Specialty, The Engineering Technology Research Center of Education Ministry of China On Diagnosis and Treatment of Cerebrovascular Disease, Guangdong Provincial Key Laboratory On Brain Function Repair and Regeneration, The Neurosurgery Institute of Guangdong Province, Zhujiang Hospital, Southern Medical University, Guangzhou, 510282, China.
- Key Laboratory of Mental Health of the Ministry of Education, Guangdong-Hong Kong-Macao Greater Bay Area Centre for Brain Science and Brain-Inspired Intelligence, Southern Medical University, Guangzhou, China.
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Zheng H, Zhao Q, Chen J, Lu J, Li Y, Gao H. Gastrointestinal microbiome of ARDS patients induces neuroinflammation and cognitive impairment in mice. J Neuroinflammation 2023; 20:166. [PMID: 37454113 DOI: 10.1186/s12974-023-02825-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2023] [Accepted: 06/05/2023] [Indexed: 07/18/2023] Open
Abstract
BACKGROUND Acute respiratory distress syndrome (ARDS) is a respiratory failure syndrome that can cause many complications, impacting patients' quality of life. Behavioral and cognitive disorders have attracted increasing attention in patients with ARDS, but its potential mechanisms are still elusive. METHODS Herein we transferred the faecal microbiota from patients with ARDS caused by community-acquired pneumonia (CAP) to antibiotics-treated recipient male mice to explore the microbiota-gut-brain mechanisms. Behavioral functions of mice were evaluated by the open field test, Morris water maze and Y-maze test. The structure and composition of the gut microbiota were analyzed by using 16S rRNA sequencing analysis. Microglia, astrocyte and neuron in the cortex and hippocampus were examined via immunofluorescent staining. RESULTS We found that the major characteristic of the intestinal flora in ARDS/CAP patients was higher abundances of Gram-negative bacteria than normal controls. The gut microbiota derived from ARDS/CAP patients promoted neuroinflammation and behavioral dysfunctions in mice. Mice who underwent fecal transplant from ARDS/CAP patients had increased systemic lipopolysaccharide (LPS), systemic inflammation, and increased colonic barrier permeability. This may adversely impact blood barrier permeability and facilitate microglia activation, astrocyte proliferation, and loss of neurons. CONCLUSIONS Our study proposes the role of the microbiota-gut-brain crosstalk on ARDS/CAP-associated behavioral impairments and suggests the gut microbiota as a potential target for the protection of brain health in ARDS patients in clinical practice.
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Affiliation(s)
- Hong Zheng
- Oujiang Laboratory, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, 325035, China
| | - Qihui Zhao
- Oujiang Laboratory, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, 325035, China
| | - Jianuo Chen
- Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325015, China
| | - Jiahui Lu
- Oujiang Laboratory, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, 325035, China
| | - Yuping Li
- Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325015, China.
| | - Hongchang Gao
- Oujiang Laboratory, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, 325035, China.
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Rusch JA, Layden BT, Dugas LR. Signalling cognition: the gut microbiota and hypothalamic-pituitary-adrenal axis. Front Endocrinol (Lausanne) 2023; 14:1130689. [PMID: 37404311 PMCID: PMC10316519 DOI: 10.3389/fendo.2023.1130689] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/23/2022] [Accepted: 05/25/2023] [Indexed: 07/06/2023] Open
Abstract
Cognitive function in humans depends on the complex and interplay between multiple body systems, including the hypothalamic-pituitary-adrenal (HPA) axis. The gut microbiota, which vastly outnumbers human cells and has a genetic potential that exceeds that of the human genome, plays a crucial role in this interplay. The microbiota-gut-brain (MGB) axis is a bidirectional signalling pathway that operates through neural, endocrine, immune, and metabolic pathways. One of the major neuroendocrine systems responding to stress is the HPA axis which produces glucocorticoids such as cortisol in humans and corticosterone in rodents. Appropriate concentrations of cortisol are essential for normal neurodevelopment and function, as well as cognitive processes such as learning and memory, and studies have shown that microbes modulate the HPA axis throughout life. Stress can significantly impact the MGB axis via the HPA axis and other pathways. Animal research has advanced our understanding of these mechanisms and pathways, leading to a paradigm shift in conceptual thinking about the influence of the microbiota on human health and disease. Preclinical and human trials are currently underway to determine how these animal models translate to humans. In this review article, we summarize the current knowledge of the relationship between the gut microbiota, HPA axis, and cognition, and provide an overview of the main findings and conclusions in this broad field.
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Affiliation(s)
- Jody A. Rusch
- Division of Chemical Pathology, Department of Pathology, University of Cape Town, Cape Town, South Africa
- C17 Chemical Pathology Laboratory, Groote Schuur Hospital, National Health Laboratory Service, Cape Town, South Africa
| | - Brian T. Layden
- Division of Endocrinology, Diabetes, and Metabolism, Department of Medicine, University of Illinois at Chicago, Chicago, IL, United States
- Department of Medicine, Jesse Brown Veterans Affairs Medical Center, Chicago, IL, United States
| | - Lara R. Dugas
- Division of Epidemiology and Biostatistics, School of Public Health, University of Cape Town, Cape Town, South Africa
- Public Health Sciences, Parkinson School of Health Sciences and Public Health, Loyola University Chicago, Maywood, IL, United States
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50
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Zhao X, Xu M, Zhao Z, Wang Y, Liu Y, Zhang T, Wan X, Jiang M, Luo X, Shen Y, Chen L, Zhou M, Wang F, Sun X. Bifidobacterium promotes retinal ganglion cell survival by regulating the balance of retinal glial cells. CNS Neurosci Ther 2023; 29 Suppl 1:146-160. [PMID: 36924268 PMCID: PMC10314105 DOI: 10.1111/cns.14165] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2022] [Revised: 02/24/2023] [Accepted: 02/28/2023] [Indexed: 03/18/2023] Open
Abstract
INTRODUCTION Optic nerve injury is a leading cause of irreversible blindness worldwide. The retinal ganglion cells (RGCs) and their axons cannot be regenerated once damaged. Therefore, reducing RGC damage is crucial to prevent blindness. Accordingly, we aimed to investigate the potential influence of the gut microbiota on RGC survival, as well as the associated action mechanisms. METHODS We evaluated the effects of microbiota, specifically Bifidobacterium, on RGC. Optic nerve crush (ONC) was used as a model of optic nerve injury. Vancomycin and Bifidobacterium were orally administered to specific pathogen-free (SPF) mice. RESULTS Bifidobacterium promoted RGC survival and optic nerve regeneration. The administration of Bifidobacterium inhibited microglia activation but promoted Müller cell activation, which was accompanied by the downregulation of inflammatory cytokines and upregulation of neurotrophic factors and retinal ERK/Fos signaling pathway activation. CONCLUSIONS Our study demonstrates that Bifidobacterium-induced changes in intestinal flora promote RGC survival. The protective effect of Bifidobacterium on RGC can be attributed to the inhibition of microglia activation and promotion of Müller cell activation and the secondary regulation of inflammatory and neurotrophic factors.
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Affiliation(s)
- Xiaohuan Zhao
- Department of Ophthalmology, Shanghai General HospitalShanghai Jiao Tong University School of MedicineShanghaiChina
- National Clinical Research Center for Eye DiseasesShanghaiChina
- Shanghai Key Laboratory of Fundus DiseasesShanghaiChina
- Shanghai Engineering Center for Visual Science and PhotomedicineShanghaiChina
| | - Mengqiao Xu
- Department of Ophthalmology, Shanghai General HospitalShanghai Jiao Tong University School of MedicineShanghaiChina
- National Clinical Research Center for Eye DiseasesShanghaiChina
- Shanghai Key Laboratory of Fundus DiseasesShanghaiChina
- Shanghai Engineering Center for Visual Science and PhotomedicineShanghaiChina
| | - Zhenzhen Zhao
- Department of Ophthalmology, Shanghai General HospitalShanghai Jiao Tong University School of MedicineShanghaiChina
- National Clinical Research Center for Eye DiseasesShanghaiChina
- Shanghai Key Laboratory of Fundus DiseasesShanghaiChina
- Shanghai Engineering Center for Visual Science and PhotomedicineShanghaiChina
| | - Yimin Wang
- Department of Ophthalmology, Shanghai General HospitalShanghai Jiao Tong University School of MedicineShanghaiChina
- National Clinical Research Center for Eye DiseasesShanghaiChina
- Shanghai Key Laboratory of Fundus DiseasesShanghaiChina
- Shanghai Engineering Center for Visual Science and PhotomedicineShanghaiChina
| | - Yang Liu
- Department of Ophthalmology, Shanghai General HospitalShanghai Jiao Tong University School of MedicineShanghaiChina
- National Clinical Research Center for Eye DiseasesShanghaiChina
- Shanghai Key Laboratory of Fundus DiseasesShanghaiChina
- Shanghai Engineering Center for Visual Science and PhotomedicineShanghaiChina
| | - Ting Zhang
- Department of Ophthalmology, Shanghai General HospitalShanghai Jiao Tong University School of MedicineShanghaiChina
- National Clinical Research Center for Eye DiseasesShanghaiChina
- Shanghai Key Laboratory of Fundus DiseasesShanghaiChina
- Shanghai Engineering Center for Visual Science and PhotomedicineShanghaiChina
| | - Xiaoling Wan
- Department of Ophthalmology, Shanghai General HospitalShanghai Jiao Tong University School of MedicineShanghaiChina
- National Clinical Research Center for Eye DiseasesShanghaiChina
- Shanghai Key Laboratory of Fundus DiseasesShanghaiChina
- Shanghai Engineering Center for Visual Science and PhotomedicineShanghaiChina
| | - Mei Jiang
- Department of Ophthalmology, Shanghai General HospitalShanghai Jiao Tong University School of MedicineShanghaiChina
- National Clinical Research Center for Eye DiseasesShanghaiChina
- Shanghai Key Laboratory of Fundus DiseasesShanghaiChina
- Shanghai Engineering Center for Visual Science and PhotomedicineShanghaiChina
| | - Xueting Luo
- Department of Ophthalmology, Shanghai General HospitalShanghai Jiao Tong University School of MedicineShanghaiChina
- National Clinical Research Center for Eye DiseasesShanghaiChina
- Shanghai Key Laboratory of Fundus DiseasesShanghaiChina
- Shanghai Engineering Center for Visual Science and PhotomedicineShanghaiChina
| | - Yao Shen
- Shanghai Institute of Immunology, Translational Medicine Center, Shanghai General HospitalShanghai Jiao Tong University School of MedicineShanghaiChina
| | - Lei Chen
- Shanghai Institute of Immunology, Translational Medicine Center, Shanghai General HospitalShanghai Jiao Tong University School of MedicineShanghaiChina
| | - Minwen Zhou
- Department of Ophthalmology, Shanghai General HospitalShanghai Jiao Tong University School of MedicineShanghaiChina
- National Clinical Research Center for Eye DiseasesShanghaiChina
- Shanghai Key Laboratory of Fundus DiseasesShanghaiChina
- Shanghai Engineering Center for Visual Science and PhotomedicineShanghaiChina
| | - Feng Wang
- Shanghai Institute of Immunology, Translational Medicine Center, Shanghai General HospitalShanghai Jiao Tong University School of MedicineShanghaiChina
| | - Xiaodong Sun
- Department of Ophthalmology, Shanghai General HospitalShanghai Jiao Tong University School of MedicineShanghaiChina
- National Clinical Research Center for Eye DiseasesShanghaiChina
- Shanghai Key Laboratory of Fundus DiseasesShanghaiChina
- Shanghai Engineering Center for Visual Science and PhotomedicineShanghaiChina
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